Handydisplay broken! What should I do?

So. Today my phone broke down. I dropped it and it now has a very blatant split screen, but still all applications work as they should. I have the Huawei Nova Plus and wanted to ask if there are any things that you could advise me, for example, if a repair is worthwhile. I'm happy about every answer…

A repair costs between 50 and 100 euro. If the phone is new and the repair can be done cheaply, for 50 or 60 euro, then I would fix it.

Otherwise, immediately buy a new phone, the "Huawei Nova Plus" costs according to Google, yes, just over 100 euro.

This model is probably borderline.
A used device costs about 90 euro. However, a repair will cost about 90 euro.
An original display for this model costs between 50 and 70 euro.

I advise you to buy a new phone because the repair is not worthwhile because a new display is paid and very expensive. I would advise you that you do not even try to fix it because if you do not protect yourself against electrostatic discharges, you destroy even the smallest contact with the components of the phone and then nothing works at all.