Why Bother?

Since having my son it has taken me a while to start working out. At first it was because I had a c section, so I had to wait at least 6 weeks before I could even lift anything heavier than my baby, and after the 6 weeks "ok" from the doctor I was still nervous about doing anything because the middle of my incision wasn't healing as quick as the rest.
Dominic was born in January and in may I started off small and did the 30 day squat challenge. Then when June hit I decided to do the 3 day Ab challenge. I did the first, lets say week, and then my incision bubbled up and popped open and left a hole. It wasn't a big enough hole that I was worried and should see a doctor, but it was enough that I was nervous to do anything else.
I started walking 5k a few times a week but when Deys mom came I got out of the habit and have been having trouble finding the motivation to do anything really since then.
Now the past couple of weeks I have been doing minor things at night when Dominic goes to sleep and yesterday I woke up and my scar was bothering me. Now this happens every once and while anyway, but when I looked at it, it bubbled up again and then it popped open. It is not a pretty site and it makes me wonder why I even bother trying to do anything that could help me lose weight because my scar seems to hate me and makes it hard to do anything. I have given up pop now for about 2 months, and I am trying to cut back on sweets as well.
I guess I am just frustrated thinking about when I have to go back to work and my pants don't fit because I am heavier than I was before... I want to work out but I am so scared about my scar it keeps me from doing so.
So, why bother? Plus, if I want anymore kids I'm just gonna get heavy again anyway, so why do something if its just gonna go back to the way I am.
It makes me think I shouldn't even try until after I am done having kids...