Hi from the above we can come to a conclusion that the gap is the issue and that needs to be fixed.
Approaches to this could be various.
Since you are quite young and would want to conserve the natural teeth as much as possible it is advisable to get the gap closed by alignment correction.
This can be achieved either by braces or clear Aligners.
The other way would be to get a fixed permanent prosthesis in the form of an implant to replace the gap.
Having said the above the only way to arrive at a treatment plan would be to consider various factors like time duration, cost factor, patient expectations .
Next Steps
Kindly get an assessment, attaching pictures of your teeth and smile can help to get a clear idea.
Health Tips
In addition to the above both your upper right and left wisdom teeth are severely decayed and need to be treated.