please help I am a complete failure

What helped you stop smoking 
Needs as much advise as possible I am a failure I really want to stop but I find it impossible I have a ecig and I still find it hard 
12 years I been smoking and need as much tips and help as possible I want to do this for me I want to try for a baby I want to live a healthy life but I always seem to fail 
No nasty comments about well if your trying for a baby stop 
I have a lot of problems and I struggle to carry a pregnancy and that's stressed me out and got me down 
But I am being refferd for help to help me carry a pregnancy 
Please Any tips would be great even if you have never smoked before but you know a way your family or friends stopped them please share that tip 
Thank you