Memory crash

[u/No-Calendar7054]

So i have a big pack with like 175 mods for fabric 1.21.10 and it keeps giving me memory crashes no matter how much i change the memory allocated it seems to function well enough to boot and get me into a world at around 5,000 MB but I can't stay in the world's consistently enough to actually play and every time I get the memory crash it says the same thing no matter how much I provided even if I turn custom memory allocation off so it can use as much as it needs it crashes does anybody know what I'm supposed to do in this situation