I want to walk 20k steps a day, six days a week for the coming 3 months. When I get in the "normal" BMI range I'll drop my steps down to 12k steps six days a week. Unfortunately I am barely getting 7k to 8k steps a day.

I work from home. I try to walk around my house during my coffee breaks. I have a 30 minute lunch so I dont walk around during lunch.

I start work at 7:00 am because I want to get to the gym early in the afternoon. I have tried waking up at 5:45 am to go out for a walk but its too early for me. I always fail.

After work I go to to the gym. Afterwards I go for an hour walk. I walk at a relaxed pace because I want to use my fat as fuel instead of glycogen. At the end of the day I am at 7000-8000 steps.

Some people reccomend running but as I mentioned earlier but I dont think I can be on low calories, go to the gym AND do running all together. It will be too much for my body.

(On a side note Is 15k-20k steps 6 days a week bad for knees/joints ?)

My stats: 178cm, 93kg, Male, 1720 calories per day

tl;dr: I want to do 20k steps a day, six days a week(120 steps per week) for the coming three months. Then go down to 12k steps a day six days a week for the rest of my life. Unfortunately at the moment I only get 7000-8000 steps a day.