capital gain and standard deducation

1) I have over $95,000 in capital GAINS from the sale of stocks in 2022.  I also  have $30,000 LOSS from the sale of crypto currency.  Does that mean that I will be taxed at 15% on $65,000 long term capital gain (90-30=65)?

--- Is there any way to postpone paying part of the $65,000 in capital gains till 2023 tax year?

2) What is the standard deduction for a single person  for 2022 tax year.

3) I am retired.  Are there any strategies / ways I can reduce my taxes (since I do not have any write offs from running my own business)?

4)  What are the rules regarding making sure that I am not fined for paying too little in quarterly estimates (because I have sold a lot of stocks this year and have high capital gains). 

----If I pay 100% of the taxes owed last year does that protect me this year?

---How can I figure out what to pay next year in quarterly estimates since I will not be selling a lot of stocks and my long term capital gain issue will no longer be a problem.

----I need to understand how to figure out how much I need to pay in quarterly estimates - is there a description somewhere on how to figure this out?