Have massive realized losses for the year so far.. is the right move to sell a lot of winners later on and have barely much in my portfolio?

So for the year I've had a Lot of realized losses so far. I know for tax purposes at the end of the year, I can basically sell my winners to “even out” or as close to it as possible… but the problem is then I'd have barely any portfolio left.

I have stocks like Amazon that I have not sold yet at all and have massive gains in… but basically I'd have to sell ALL of my Amazon stock (that I've held for 5-6 years) in order to even out for the year.

I just wonder from an investing standpoint how would you go about this? Better just to hold IF I don't need the cash this year (which I don't) or sell to even out and take some gains?