Could anyone help me build this Userform

Hi Dear All

I am HR Officer in Hospital. I need to have excel tool to manage and record staff leaves. I have built this excell sheet with macro but i failed to make it functional.
i attached here.
Please open this file attached and give me codes of the userform I bulid.

Please help me get if functionong..

if you could join me with another idea better design, i will cheerfully welcome and bless you

Best Regards
Axmed.cm