Hi... welcome to the forums :)
You have done the biggest and best thing you can do - seeking help! Suicidal thoughts are so dangerous and incredibly scary. For most of last year I constantly battled with them - why should I carry on if I was going to be battling with myself for the rest of my life? Surely it would be easier on everyone that loved me if I wasn't around? Was is the only way to stop the constant thoughts and questions that my own mind kept presenting for me? I was just going round and round in circles and more than wanting to actually die, I just wanted to get out of my own head - if that makes sense?
Please please believe me that you won't always feel like this. You are 25.... thats not old! (I'm 26, so re-assuring myself here too!!) Its so easy to look at other people and think they have everything... no-one has everything perfect! People could look at me and think: loving relationship, own house, gorgeous dog... half of those people don't know I constantly battle with my own demons in my head because I choose not to tell them! Everyone has their own personal demons and just because they don't wear labels on their heads doesn't mean that they aren't suffering in different ways... be it money, family, job security, relationship problems... we're all so quick to put on a front and pretend everything is just hunky dory, when underneath everyone is exactly the same.
You are on the right track and it probably will take time - but you will get there :)
Nay x