Starting Football late?

Im starting football later than most kids, so i need to learn some basic techniques for WR/DB, such as stance footwork, running patterns, coverages, etc. so i look like i know what im doing and can catch up quickly. Also, some information about the playbook and blocking/coverage schemes etc. so if the coach says for me to run some route i'll know what to do. also what conditioning should i do for the rest of the summer to get ready? any insight will be appreciated, thanks