Hi and welcome to the most friendly, supportive and helpful community on the internet! The ladies are right, we never compare. What you are struggling with is important because it's having an effect on you and your life right now. That means it needs addressing and help. That's definitely not weak or you being a spoilt brat or anything else... It's you being human.

The team are right, your next step should really be your Dr so you can get a proper diagnosis and access to help - whether that's meds or talking therapy or both. That's their call - we aren't medically trained so can't tell you what it should be. We can tell you that there is a long wait on the nhs for talking therapy and if you are looking at meds then it can be a bit of trial to see which one suits you best - it's not an exact science.
I would advocate taking your girlfriend with you because she obviously loves you and knows you and can help you to fill in any bits that you may not be able to say... A lot of people write a list or print out their posts from here and take that along with them.

Anyway, it's good to meet you. Have a good look around and join in where you feel comfortable.