I need your help.

I need advice, tips, and a lot of encouragement. I decided to finally quit smoking. I have been wanting to do it for a long time now but couldnt seem to do it. I want to be healthier and set a good example for my daughter, Isabella. Another reason is I suffered a miscarriage back in December and I blame myself because I was smoking before I found out I was pregnant. If you have quit please tell me how so I can too.