Is it dangerous to use a previously water damaged phone?

My display has been quirky since Halloween 2020. I dropped it one last time and the display finally broke . I see a black screen but the phone is working perfectly fine (I tested by calling myself). Just want to know how to fix it, preferably with no specialized tools if possible.

Update: I have found that my previously water damaged phone from over a year ago is still functional. I could use this phone in the meantime while I learn how to fix but I don’t want my phone to blow up or shock me. Is this idea dangerous?