Looking for support - 20 days until holiday and I can't keep on track!

Hiya all,
New here, I have not been very successful with will power in the past. I'm looking to lose half a stone. My only vice is alcohol - I'm a lager lover and it's giving me love handles.
I don't smoke, I don't drink milk, I hardly eat cakes and chocolate - so it must be down to beer right?

I have 20 days until my holiday - I'd love to get focused!

X