Finasteride, physique, hairloss

Hi guys, is any of you taking Finasteride or any DHT blocker? I noticed some hair thinning and wanna know a few things before I start:

1. Did it influence your gym performance? I'm working out hard and battle with my shitty genetics and weak physique. I don't wanna make this matter any worse

2. The libido. Right now I have a huge sex drive and I want it to stay this way. It's a big part of me haha. Has any of you experienced any side effects here?

I appreciate your answers and I'm happy to answer any questions