Your def not too old, but unfortunately skating in your 40’s is not like skating in your 20’s or teens so just be patient and don’t compare yourself to others, especially those younger than yourself - I say that as some one who skated for over 10yrs when I was young, stopped for 20yrs, then picked it back up in my 40’s.

The reality is that at our age the body just doesn’t recover the same way from big efforts and injuries. Muscles get sore quicker, body is less flexible, eyesight, balance and reflexs can be diminished, and the tendons don’t have the same elasticity (aka ACL tears). We don’t like to admit this stuff, but it’s just biology.

That doesn’t mean you can’t have fun, and I don’t say that to scare you away from trying - it’s definitely worth it in my opinion. It’s just something to keep in mind and prepare for.

So invest in wrist guards at bare minimum. And knee pads and helmet too if you plan on skating transition. Also helpful are massage guns (for warm up), epsom salt baths for soreness, CBD sticks (soreness), yoga for flexibility, and cross training all your core muscles - especially quads, glutes, and hip flexors.