Try to prepare two main defenses against both e4 and d4, one as a primary weapon and one as a backup. Similarly as white plan on playing either e4 or d4 as a main choice but you can be flexible and play something else if you want to switch it up.
The trouble with studying too many lines is that it's so easy to spread yourself out too thin and not analyze a specific opening deep enough.
I actually already have prepared 2 defenses for d4 and e4 i play the french and the tarkatower the reason i play it is because its low theory and very easy to learn
Try to prepare two main defenses against both e4 and d4, one as a primary weapon and one as a backup. Similarly as white plan on playing either e4 or d4 as a main choice but you can be flexible and play something else if you want to switch it up.
The trouble with studying too many lines is that it's so easy to spread yourself out too thin and not analyze a specific opening deep enough.