Hi Luckylis, I'm "training" for a half-marathon too. My current week looks similar to yours, with maybe less volume:
Mon - 1 hour "boot camp" interval class (burpees, pushups, squats, etc)
Tues - 1 hour walk with sprints
Wed - 1 hour boot camp class
Thurs - 5k-ish tempo run
Fri - rest
Sat - 1 hour walk, maybe a short run if I feel like it
Sun - 12K-18K long run with friends (slow enough to easily talk), 1 min walk interval every ten minutes
I also do a few dumbbell exercises and abs a couple of times a week.
It's not a "proven" plan but I know I'll finish the half! I don't want the stress of shooting for a certain time goal so I have a relaxed attitude regarding training. It's always better to be under-trained than over-trained on race day.
Good luck with your half!