Should I sacrafice form for heavy lifts?

I see all yall talking about how i need to lift heavy every single day and perform progressive overload.

Right now im doing a PPL split and add on about 5 lbs for every major lift every 3 out of 4 sessions. Im lifting about 75-80% of my one rep max on bigger compound lifts for 10 reps.

Should I add more weight? Im trying to build strong proper form because my dad who used to lift is suffering the consequences of shitty form during his teens.

I feel like I can go more and feel like im making slow progress, but my form has never been better.