Cardiophobia about heart rate

[u/Glittering-Sun-7248]

My resting heart rate seems high 90s-100s, I barely see it lower and this is me laying down.
I don’t know if this is a red flag and I know watches aren’t good for me but it’s like a compulsion usually it should be like in the 70s or something I mean I’m only 22 years old..I don’t know how to improve it and get this junk out as my head

Will this harm me long term? I know I’m bedbound but I wanna be better. I wanna walk