请帮忙写一篇150字左右的英文申请信大一的一篇作业you find one of school courses is to diffcult for you.Write a letter to the dean explaining the situation and inquiring about the possibility of choosing another course.150字左右

Dear Mr.XXXX(Dean)
This is first year of my university life and I'm currently taking electrical and electronic engineering course.After first semester studying,I feel very stressful that I found this area of studying is too hard for me and I lost interest in this course completely.I realized the situation is quite critical for me at the moment and I tried several ways to gain my motivation in this electronic area and doesn’t seem to be worked.The only subject I studied very well is a commerce subject “Micro-Economics” which as an elective for my course.I feel more than happy if I can just take all the commerce subjects in next semester,which means I have to change my course.I understand it’s an unusual case among all the students and might causing trouble for the faculty,but is there any chance that I can change my EEE course to commerce please?Or is there any alternative way you would like to suggest?Hope this won’t be too late since the next semester hasn’t started yet.sorry for the trouble again and thanks for the help,you reply will be appreciated.
yours sincerely
XXXXXX
XXXXX(student number or ID)
十分钟随便掰的,如果不符要求还请见谅.