I suggest you not to study 毅進, because requirement of Pre AD program is lower than before. You need not to waste time and money to study 毅進, then study Pre AD.
I think HKBU AD program is a best choice for you. They have a top up degree major in psychology, this degree allow all student to write thesis. It is better than HKU, CU Cityu that allow part of the student to write thesis only. After top up degree, I suggest you to go Australia to study master, bacause it is fast and quicker than US and UK.
**Thesis is a must for you to study master degree**
Besides, You should consider your personal ability. I could tell you that psychology is not an easy subject and will study very hard =.=