I nearly dropped a 25 lb weight on myself yesterday. When I'm reracking weights, I get lazy and grab multiple weights and the 25 lb one slipped but luckily i caught it. I've never had a guy offer to help me with weights before but the biggest plates we have are 45 lbs, which is quite doable for me.
Actually I did have a girl offer to unrack a 45 lb plate on the 45 degree leg press that she had finished using.
Gen, you aren't a weakling, you just need to build strength up

I have strong legs because I have to carry around 300+ lbs all day long and I've always been at least quasi active. Even with that, I have built up my leg strength quite a bit just in the last 3-4 months.
Last night I did shoulder work. On a set of shoulder machines (military press and front military press) , I remember starting with 12.5 lbs on each side and it wasn't easy. Last night, I did 40 lbs on each side and I was kind of amazed. I'm quite happy with my shoulders mostly because those are the only muscles I can currently see through my layer(s) of fat. I can feel other muscles getting firmer and stronger though so that is good.