YOU SAID:

I have to go to the toilet a lot due to my lack of ability to not drink water

INTO JAPANESE

私は水を飲まない能力が不足しているため、トイレにたくさん行かなければなりません

BACK INTO ENGLISH

I have to go to the toilet a lot because I lack the ability to not drink water

INTO JAPANESE

私は水を飲まない能力が不足しているので、トイレにたくさん行かなければなりません

BACK INTO ENGLISH

I have to go to the toilet a lot because I lack the ability to not drink water