Options of becoming an engineer after undergraduate in Ai

I’m entering my last year as an Ai major and I’ve come to realize I don’t enjoy this path and want to become a mechanical engineer .

I thought of taking a masters degree before but apparently it doesn’t qualify me the same as someone who had an bachelor’s degree in ME and I’m wondering if I should repeat undergrad.

So to become a ME , should I repeat my undergraduate degree in another university or take a masters degree ?

Any advice or recommended sources would be greatly appreciated.