Telling him to put it in to one game is ridiculous. If anything all this does is start a crooked pattern for the OP and his original intentions on building a BR.
If you want to gamble, then go ahead. Personally I've done it before and I went from $20 to $400, just like you did Blue, just like JoeBob is saying.
Gamble ,not play poker, but
gamble.
I also have done it going from $0 to around $200 strictly with BR management. Sure there is a point when you're so low their really can't be much BR management, but I would play the lowest games around.
^ THAT is what the OP should do, regardless of his skill level, otherwise bon voyage to ever wishing upon a soaring bankroll.
And regardless of the fact I made that $400 very quickly and playing very efficiently I much prefer my second time method where I used proper BR management.
If one runs terrible and plays well 20 times in $1`games then so be it, that is variance. When you have AA and you run into AK in a $20 Max Cash Game, and you lose to a Q J 10 flop that is just a part of the game, and unfortunately here you're broke. At least feeling like the star of Rounders..
Even if he didn't go broke playing that first $20 game, it is nearly a guarantee later on his journey to a higher BR that he will go broke playing somewhere else.
It is misleading when members on here who have 1k - 2k posts and are spewing such advice as this, and don't act like it is simply because he is a bad player, because your advice began by saying that this is what you would do yourselves.
Oh yeah, like the micros are real impossible to beat