few questions about estimated Taxes

Hi, this year is first year I need to do estimated Taxes. here are my questions

1, I missed 6/15 deadline and paid on 7/20, do I get penalty for late payment?  if so how should I know how much penalty do I owe and how to pay the penalty?

2, let's say my quarterly estimated Taxes is $2000, I paid $2000 on 4/15 and 6/15. Can I pay more than $2000, maybe $5000 each time for next two payments?  I don't have any change on my income, I just wanted to pay more

3, by next year Tax time, when I file 2020 TAX return using turbo TAX, from where do I get estimated TAX payment record? and where on Turbo TAX do I enter the paid estimated TAX amount?

 

thanks