28M — first time trying to top, totally flopped after the condom… normal?

I’m a late gay bloomer (28M) and this was my first time ever trying to top. Everything was great at first — the making out, touching, all of it. I was hard the whole time during foreplay and so was he. But the second the condom went on, everything went downhill. Total mood-kill. I’m pretty sure it was performance anxiety because I was nervous and super into the guy (he’s really hot).

He was very understanding and patient, and he’s vers so he knows what it’s like to try this stuff for the first time. But I still walked away feeling like I failed miserably. We didn’t even get to penetration, but at least him and I ended up finishing outside of that.

My questions are:

1. Is this totally normal for a first time topping experience?
2. How effective is it to work on “death grip” habits and sensitivity?
3. When do guys usually consider stuff like Viagra?
4. And overall… does it get better with experience, or should I rethink whether topping is for me? (Because I honestly can’t see myself bottoming.)

Any re-assurance/advice is welcome, because I cant shake off the feeling that it was abysmal or (as dumb as this may sound) my manhood failed me. Thanks.