A bit more variety will stop plateaus. For no equipment workouts try Athlean Xero which is not free, I think it's $60-70 but includes a full workout program that can be done anywhere with nothing but your own body, comes with a nutrition plan and separate abs workouts. Includes muscle building and endurance and cardio workouts. If you don't want to spend any money get the Madbarz app for your phone or go to their site. Requires a pull-up or dip bar for some workouts and it doesn't tell you what days to do what workouts like Athlean Xero does. I think Athlean Xero is a better program but you might want to add some pull-ups and chin-ups to it. Hope it helps.