Do you push AT here?

[DVO]

Sorry if this sounds basic, but I have run into this situation a few times and am beginning to question my approach.

The situation:

Just in the money. I'm short- have 4500, blinds 300/600.

UTG +2, even shorter - 2000 chips - open pushes.

I have ATo in MP/LP. Folded to me.

My logic is that 1) UTG +2 has a wide range here 2) I'm pretty desperate. Thus, I push.

FWIW I would prob fold A9, and definitely A8 on down.

The problem is, this seems to never work out. Either the early raiser has AJ+, or someone behind me wakes up.

Am I really supposed to be folding AT with an M of 5 here?

What would you need to play? ( presumably all in).

here's my nagging thought: Just because I'd be open pushing in UTG+2's shoes with a wide range doesn't mean he is - i.e. many players are way too tight when short stacked. Thus, my AT ain't that great.

Nagging thought # 2 is how easily I'm called by a player behind me as well.

Help....am I overthinking this?