idk what to do

I graduated this year, i got placed in a service company. I did six month intern there and I am now waiting for full time employment offer letter. It has been three months since the intern ended and I am unemployed ever since. I have applied for 150+ job roles and about 70% got rejected and no response from others. I think I have a well tailored resume and linkedin.

What am I doing wrong? What should I be doing rn?