I am extremely disappointed with trading because I tried altcoin trading today, and in the end I received a net loss. First of all, I had only a few mBTCs in my wallet. Now they are gone as well.
So why are you actually disappointed with trading because of that?
This is a great source of income, if you are experienced enough to do that successfully for a long period of time, It might turn out that you will earn more than from your primary job.
However all that is about education and trading skills.
Your loss shouldn't make you dissapointed about trading, because I have lost many many times my whole deposit, both on FX and alt-trading.
I recommend you reading the books of famous traders, i assure you that everyone of them had encountered such a situation, where the account funds was basically busted because of a wrong decisions.