I decided to go for a vaginal birth honeymoo. I thought I was very unlucky to have a third degree tear first time round, didn't have an instrumental delivery or epidural, all of which I've heard make it more likely to tear. Instead dd had her arm up by her face and was also back to back.
I had second degree tears with second baby and I recovered very quickly. However, I actually think I was better stitched after the third degree tear than I was this time round. Spent ages trying to work out where scar line was when I was stitched up after third degree and couldnt see a thing. Was wonderfully repaired in theatre. However this time round I can clearly see where I was stitched and cosmetically it's not as good. I also feel a bit looser as well.
Have had no problems at all with either tears. I worried a lot about incontinence after third degree tear but had absolutely none. No leaking and my pelvic floor is fine. Could all be a different story a few years down the line but who knows... 
I remember feeling bruised and swollen down there for ages so give yourself more time, you're only a couple of months post partum it took me about 6 months to feel completely normal and everyone recovers differently. I know some people who recovered after a third degree tear in days 
and were back having a sex within months!
Wishing you a speed recovery.