Pressing more upright

I'm terrible for leaning back whilst log pressing for some reason I can't seem to stand more upright I managed to do it once last night and 100kg absolutely flew up stupidly easy any suggestions would be much appreciated

How much core work do you do?

Start from light and work up... you need to think of your hips and shoulders like a bucket of water. Rock forward you spill and rock backwards you spill.

Core strength I doubt would be a major issue come to think of it but squeezing your glutes and consciously engaging your core should give you a nice neutral posture to press from.

Cool thanks for the advice bud i like I said last night I got a good up right position for one press and it flew up, I will defo put your advice into action as soon as possible

I have a huge lean back, happens when ever it gets heavy, and I've never found a way around it, just seems to be my strongest position... I'm now trying to embrace it! (below is a recent example...)

That's what I did I after a while but then discovered by accident last night that my pressing is stronger when more upright after my first rep on the 100kg log was pretty hard then my second rep was really easy

Thats crazy. Allmost like a jerk only you "dip" with your spine instead of your legs.

Thats how people used to do barbell presses when they were an olympic lift.

Leaning back puts more pec into the movement, so probably weak delts? ive noticed i lean when it gets hard

Snatch grip behind the neck presses seem to stop me leaning back might be worth a try.