Pnl negative

I’ve lost over $250 in memecoins I’ve tired scalping I’ve tried copy trade bots I’ve tried investing in high Mc coins and scalping those. But I’m having little to no luck. It seems my problem is investing small amounts into small coins pulling at 10-80% increases at low amounts and selling . But when I invest larger amounts I end up negative 20-70 Pnl on the sale, I’m on axiom and pump fun but I can’t seem to hit