CRYPTO sale

Im 57. Live on VA disability ONLY. Married with a teen.

I have been investing in crypto long term ie 1 year plus..

From my understanding, according to the IRS my standard deduction is 29,200.00

So lets say I sell my part of my BTC and profit 20k. Would I need to pay taxes on this if this is all I made for the year?

It seems I wouldnt since my standard deduction is 29k ish.

ty