>looks are important in romantic relationships and getting in shape, having good hygiene, and dressing well will make you more attractive.
No shit. People want to have sex with people who they find sexually attractive. This applies to women as well, hence why the obese legbeards on Beauty Parlor can't get laid either and spend all day seething about men because of it.
Also, what you are talking about isn't even aligned with incel ideology and is more aligned with PUA and manosphere types. Incels believe that certain people are unable to become sexually attractive and that they will never be able to compete with Chad Thundercock no matter how hard they work or how physically attractive they make themselves (hence the "involuntarily" part of "involuntarily celibate"). If anything, you are proving incels wrong by proving that working on yourself, as opposed to crying on the internet and going on school shootings like a typical incel does, makes you more sexually appealing to women.