You may want to consider stopping for now since youre only 1 pin in and do A LOT MORE RESEARCH. This is not sonething you can just take day by day you need to know a lot more about what youre doing to your body and what you need to do to recover.
Research these things untill your head explodes.
PCT (post cycle therapy)
AI (aromatose inhibitor)
Proper dosage of sustanon
Proper injection technique
Proper diet on and off cycle
You wont be perfect but at least youll be somewhat knowledgeable about what youre doing here.