Suicide is pretty final you know...imagine an afterlife where if you commit suicide you are turned into a barren tree that can talk, and all the other trees around you can talk, its a forest of suicide victims - in a dry and barren landscape, and all of you spend eternity talking to each other about how miserable and worthless your human life was because of whatever made you feel like life wasn't worth living anymore.
Imagine how you'd feel after a year of standing there listening to this.
Now imagine how - if you spent a year of this life trying your hardest your damndest to change whats is making you miserable now...what if you found out that in one year with just a little effort every day you could totally change the way you see yourself, what lies you believe about yourself. And really, what if in the end of that year everything made sense and your life completely changed.
I'm in the process of that one year right now...and it isn't easy at all, but the process of doing something about it is changing me.
I would very seriously recommend that you start a journey of your own to fix yourself, but, don't do it alone, get help.
Start by knowing what exactly it is that you want to change, the way you look? The fact you are single...do not, whatever you do, try to change your singleness the way you feel now...do the work and try again when you get to where YOU KNOW what you are doing and why.