An exercise routine for me for March

I'm working to get back into exercise, and have decided to use March as a springboard for it. My friend Mark did a challenge with a shit ton of pushups and pullups for February, so I'm doing something similar, but toned down for my older, fatter self.

I started out Friday with 5 pushups and 15 body weight squats. The idea is to add a pushup each day to the total and end up at 36 for pushups on the last day of the month. But I'll go for 40 because my OCD hurts. I'm trying to add 5 squats to each day, so yesterday was 20, and the end of the month is a ton I don't feel like doing the math for. At my peak of working out I was able to pull 200 without too much issue, so I think I'll be OK.

The short version is, I need to get back to being active again. My knee knocked me out for a while, but I've basically been told as long as I don't really run or go super high impact I can do whatever I want. So I'm starting with the squats and pushups. I also am working to incorporate the stretches for my knee into the workout as well, so that I retain the range of motion that I need to have for that. My goal right now is to not be any more worn out in June at Infocomm than I was on the years before my knee issues, and hopefully not be really worn out at all. Would be nice if I managed to get through it without taking handfuls of Ibuprofen. I'm working on diet as well, because I have an overall goal of being 50 pounds lighter than I am right now. Not sure if I'll get that by June, but if I work at it - maybe.....