Will this do anything?

Some info: 23 male 5'11 70 kg. On my feet 8 hours a day for work which involves light lifting, mainly trying to get rid of flab and tone up.

2 sets of 5 push ups, 2 sets of 10 hunker squats, 2 sets 50 kettlebell swings, 3 1 minute planks.

I can do this 3 times a day but its embarrassing I can't do more without nearly dying.

Open to suggestions but all I have is a kettlebell. If it's awful please tell me i'm lost here lmao