For starters, welcome to TM. You may want to make your way over to the introductions section and let folks know a bit about you; it allows old dogs like me to better aid you and also let's other folks feel more comfortable when it comes to sharing insights and information.
Some would lead you to believe that being a "Professional" means that people give you money for doing tricks. In far too many cases people give money to certain performers, just to get them out of sight.
No, seriously... if you are simply doing a few basic shows here and there and less than half of your personal income comes via magic, you are technically what is known as a "Semi-Pro" and obviously, when you are generating more than that, you start moving into the category of being a true "Professional". This is the standard that most magic clubs and fraternities have applied for decades.
Understand however, there are many "Professionals" out there that simply stink and countless "amateurs" that are phenomenal; the standing in this case, does not denote one's level of expertize. I've known dozens of hobbyists whose skills could put most professionals to shame. In fact there are a couple of legends in our world who have an amazing reputation for being terrible at slights (myself for one), their success stemming from personal charisma and business savvy... little other.
Now you've admitted that you've fallen under the spell of playing cards which has to be the biggest field of magical study... one of the reasons I avoid it and likewise loathe it. Understand that I've seen most of the top card workers out there and been blown away by them. This is entirely different than what we find in the majority of those calling themselves "Magician"... which is why, for example, Mike Caveney would put his wife to sleep by asking her to pick a card, as they moved into the Broom Suspension... in short, outside of the magic world, most people find card tricks boring as well as redundant.
I'm not saying this to be cruel, only to splash a bit of cold water on things in hopes that you will seek recovery from such a horrid addiction; start working on coins and other aspects of close-up so as to save your own soul.
My point to all of this is that you can't judge your level of proficiency, which is what I think you're actually trying to figure out, until you place everything on the line and get involved in competitions or start doing demonstrations regularly with the local magic clubs and getting feedback from the membership. Though such feedback can have some bias attached to it (clubs are politically inclined beasts) the networking that they allow is what you are really looking for; how one or two well connected and more "craft oriented" types will steer you into other circles where you will get a more critical eye placed onto your skills. In a brief period of time this will generate word of mouth PR amongst "your peers" which will eventually lead to to an important threshold; deciding whether or not to go pro or just allow magic to be a side-line/a part-time venture.
It is quite tempting when you are getting accolades and winning awards based on your skills. But as a young man I'm working with here in my area has learned, show business is a cruel mistress that demands constant attention; there is little to no room for "distractions" such as having a "normal" family life. She demands the bulk of your time, which is something few that dream of becoming the next big name in the trade, lend pause to for the sake of consideration.
A dear friend of mine is one of the highest paid and most busy psychic entertainers out there. He works strictly corporate gigs at over $5,000.00 a clip and frequently does 2-3 shows for different clients in one day; frequently doing one in the morning in Boston and another that evening in Manhattan or Vegas, etc. For nine months out of the year he's on the road traversing the globe. He and his wife schedule one month each summer to be together with nothing else interfering. Their "kids" are little fury things that bark in that they didn't want to put little humans through the hell they would have to endure when growing up in a show biz oriented world.
I can readily give you a myriad of other "down sides" when it comes to going pro but I feel that pointing out "the price" as it were, when it comes to the sort of life most of us see for ourselves, is more than sufficient, in that I simply want to inspire a bit of thought, little other.
The bottom line is quite simple; you need to get feedback from others when it comes to your skill. Never be content with what you hear from your family and friends (though they are typically your biggest critics outside your self); constantly seek out others and get their opinions. You don't want to ask for them, just listen. If possible, have someone else eavesdropping or recording post show conversations so that you hear HONEST feedback. Then, as I said, get into the competitions. If you are honestly good, the ribbons and trophies will begin to accumulate as well as the encouragement & invitations to move into higher profiled competitions like FISM... even if you took 3rd place at FISM, you've proven that you're one of the best on earth.
I hope this has answered your questions. I'm confident that others will toss in their two-cents as well.
