@Trabaho Start with 2-3 days of kickboxing first(in an actual gym class). Once you can hit 3x a week consistently for 1 month, add a strength day for 4 total.
Do that again for 2-4 weeks and then add a second strength day.
IF you feel you need more work on top of that add something long steady state based 1x a week like a ride, run, or swim. You could do something like this to alleviate the boredom of the long session if you want to stay gym based:
10 mins Ride
10 mins Rowing
10 mins Running
x1-2 rounds
30-60 mins total
You always go super hard, burn out and never stay consistent from your posts.
Take 2-4 months to work up to regular consistent training.
This will get you 3 KB skill sessions, 2 strength sessions and 1 optional conditioning sessions each week for 6 total sessions.
6 sessions a week consistently adds up to 24 sessions each 4 week period. 24x12 is 288 sessions a year. That's how you build good levels of strength and fitness without burning out.
Do that for 12 months and then you can adjust that schedule for different goals. e.g if you want to get super strong, drop a Kickboxing session for a strength session and change the focus for a few months.