What can I do if I develop side effects from Finasteride?

[Vic12]

I'm thinking about starting Finasteride. Aside from a receded hairline, I have thick, coarse, short hair that I style and always looks good. However, my crown is a little thinner than other places, but it is not noticeable unless I put it under bright lighting. If that progress, I'm going to try to get a prescription for Fin and if I can't I'll be ordering proscar online.

I'm 18.

I've read about many side effects of this drug.

Most don't seem serious. Lower libido? That would be a good thing.

But I have read about testicles/penis shrinking and complete LOSS of libido, as well as erectile dysfunction. As well as weaker orgasms. And as we have all heard, some of these can be permanent.

I know the chances are low. But if I started to develop some of the serious side effects, what courses of action could I take to combat them?

For example if I develop persistent side effects, are there other medications/treatments to combat things like complete loss of libido and junk shrinkage?

I know this all sounds silly, I'm just trying to think positive and know my options.

I'd appreciate any answers or opinions.