Weird Electrical Problems with the tailights

I have a 99 323i the taillights went out like 2 weeks ago and hes the problem

my fuse keeps blowing out which is fuse #9 :ben:

sometimes i can put the fuse when im on the freeway bcs theirs not really sharp turns but once i make a sharp turn the fuse blows again

and sometimes it would just blow instantly

or also if i have my car on on park the fuse wont blow unless i turn my steering wheel left or right sharply

i don't think my brake light switch would make my fuse blow all the time bcs i took it off and the fuse still blew out

and ive been searching for a short but i couldn't find any i

i checked the trunk boot and all the cables look new i checked if the

back taillight were burnt out and they looked new with no damage

so i cant figure anything out but to take it to a shop and i usually am the one that fixes my car thanks to websites like this just on research

anyone with an opinion please let me know thanks:cry::cry::cry: