It’s been almost two years since I put my account on vacation. Almost two years since I’ve even really thought about radicals and kanji and such. After so long, it made sense to me to reset my account, although I decided to reset to level 2 (something about the radical update and you would lose something if you reset to one? I’m not sure but I figure better safe than sorry). I was at level 10 at the time.
In the end, you have to make the best choice for you. If you weren’t paying attention to radicals before, you can always go over them now and see how they fit into the kanji you encounter from this point forward. You may not have read the example sentences before, but you can always make the decision to start reading them now. You don’t have to reset at all, but if you do, you don’t even have to reset to level 1. You can fall back to 6, or 5, or whatever feels most comfortable. Best of luck. No matter what choice you make, it’ll all come down to keeping it up and doing your best with what you have.