I'm having trouble pushing through Self loathing as a beginner.

Every time I try to work out, do some basic cardio I get so exhausted and sore so quickly it kills my motivation. I know rationally that I need to keep at it to get into better shape but whenever I try to exercise I end up hating myself so much for being so weak I can't keep going and I know rationally that I need to keep doing it to get better but instead it just makes me stop.

I mean i can't be the only one who was like this first starting out. how do I push through this? because just being rational isn't working, i need to trick myself