When I win 300% 
That's too much bro. I like going x10 only. I have control of myself during my gambling that's why I only target x5-x10 of my initial bankroll. If I go higher, I'm thinking that I can lose in the long run. So it's better to quit early with winning, instead of targeting more. And the more you stay, the chances of you losing increases as well. Its really hard to get to x50 what's more with x300?
Placing only 100 bets a day, for example, because you think you will lose in the long term is not a strategy. It's in fact the same as placing a lot of bets the same day because you are still coming back to place 100 bets everyday which will eventually lead to you having placed a lot of bets, your luck/odds do not reset just because you stop playing.