How to stay positive?

Lindsey
How do you stay positive? I have been TTC for almost 2 years now and had
a miscarriage in August. This is my first attempt to get pregnant after miscarriage and I should have got a positive today but nothing, instead I get some dark brown discharge :( my friend had a baby two days ago and I'm trying to be upbeat for her but it's hard. I want to be happy and positive this will happen for me but I'm stuck at the moment.