That is where your problem is. The saying is "cut your losses and let your winners run." Your winners have to be several multiples of your losers. So, if you win say $500 on average and you lose say $150 on average, you will come out ahead and by a huge amount. Win average is irrelevant. You could win at 30-40% of the time and still make monies. Small losses is nothing, it is the big losses that eat up your profits or even your capital. Losing is part of trading and numerous small losses is preferred over a couple of very large losses. This is where risk management and position sizing comes into play.
If your TP point is 2x as large as your SL, then you are 50% as likely to hit it. So it all equals out again. It all goes back to having some way of accurately predicting.
he blew his account when it was small. He had a full-time job as an mechanical engineer and saved up money. Eventually he got good enough to quit his full time job to do trading.