I hope this helps.
First Conditional (1st Conditional)
FORMATION: If + Present Simple, + Will
USE:
The first conditional is for future actions dependent on the result of another future action or event, where there is a reasonable possibility of the conditions for the action being satisfied.
eg: If he gets here soon, I'll speak to him about it. (The speaker believes that there is a reasonable or good chance of seeing him.)
https://www.usingenglish.com/glossary/1st-conditional.html
---------------------------------------------------------
Second Conditional (2nd Conditional)
FORMATION: If + Past Simple, + Would + Base Form
USE:
1/ For future actions dependent on the result of another future action or event, where there is only a small possibility of the conditions for the action being satisfied.
eg: If I won the lottery, I would stop working.
2/ For imaginary present actions, where the conditions for the action are NOT satisfied.
eg: If you phoned home more often, they wouldn't worry about you. (The conditions are not satisfied because the person does not phone home, so they do worry.)
https://www.usingenglish.com/glossary/2nd-conditional.html
-------------------------------------------------------------------
Welcome to the forum!
8)