Sorry to read that mate,many of us on here have had similar experiences. The positive thing in your post is that you recognise that things are getting a little bit better , day by day. It's not much of a response from me but that is very often the way to get through these things, on a day by day basis, then gradually you realise that you are coming out the other side. Good luck with things.I was due to be married after 3 years coming up on Aug the 3rd.
2 weeks ago my fiancee left me, I have never felt so ill in my life and it really has been a struggle to block out the dark thoughts.
However things are now starting to get just a little bit better day by day.
Dont give up and keep as strong as you can is my advice to anyone in a similar situation , even if you feel like there is no point.