The fundamental issue is that, to realize those 10,000% gains, you have to sell to some greater fool for a 10,000% inflated price. And there's a good chance that greater fool will be another retail investor just like you. (Leveraged trades which don't require a 10,000% price gain are possible, but what "leverage" means is that you can lose more than your initial $100 investment.)
It's a different story if the stock is legitimately undervalued, of course. But there's no coherent argument to be made that GME's current price - up 110% since yesterday! - is rational or sustainable. And indeed, if you look on WSB today, you see a lot of people explaining that you'll ruin the bubble if you don't keep buying lots of GME.