This is my first time reading an action manhwa and I READ IT IN ONE GO!!!! IT IS SO INTEN...

If you want a similar story I'd say I am the sorcerer king though I honestly didn't enjoy it (maybe you'll like it who knows)
As for action actions webtoons that I enjoyed reading :
Ranker who lives a second time
The descent of the demonic master
Legend of the northern blade
Tomb raider king
Mujang
The beginning after the end
Volcanic age

Omg... Tysm for your recommendation

You're welcome ~