am i switching up my work out to much?

Latly i have been changing up my workouts every week,
i have a WEEK A and WEEK B workouts.

for example week A i will do barbell workout , and week B i will do dumbells,

I have been at a platuea for a while , so i was wondering , what do u guys think i should do ? should i stick to my Week A workout for a few weeks then switch up to week B to shock my muscles.

also how often should i switch , i was think 3 weeks doing workout A then switch to 3 weeks doing workout B, what do u guys think.

well give me some advice , and let me know how u guys switch your workouts up. thanks

six times at a given workout then i'll switch it up
you still can plateau if you been alternating from your a-b workouts
you body just got used to it now, try sticking with the "a" or "b" routine for more than a single week. you have the right idea of trying 3weeks, anything that is different from what your doing now, is what you need

you probably need new exercises to do altogether