Martial Arts
"You can use Dexterity instead of Strength for the attack and damage rolls of your unarmed strikes and monk weapons."

I should be using the ability modifier from the higher stat between my STR and DEX on damage.
Instead I am stuck with STR value.
https://i.imgur.com/VbPFMnL.png

Please vote for visibility, or tell me why I'm a doo doo brain who is wrong and should feel bad.

That +5 that you circled is for your Saving Throws, not your actual Dex modifier. Since Monks are proficient in Dex Saves, that +5 is your Dex mod (+3) combined with your Proficiency bonus (+2). Since your actual Dex mod is +3, that means it is using the correct numbers for everything.

You can further tell in that image that your Actobatics skill is only +3 without any proficiency, which means that your actual Dex mod is only +3, and that your Athletics skill is only +1 without any proficiency, which means that your actual Str mod is only +1.

Thanks for teaching that to me. Guess I got some stuff to learn huh.

Happens to everyone. Glad I could help.