As said offering a paid version and integrating Google ads, getting paying customers is always hard which is why offering a free trial is much easier, treat this as your beta testing, you know what they want now try and do more conversions. Time trials make people want to pay since they need the product, and people hate ads too. Also create a sort of streak mentality like snap and that can help users be more active. Do you get me?

I can recommend someone who will be an amazing CTO and if you can pay a suitable amount I am assured you will be satisfied.

How about you conceptualise it and design the app first before meeting any devs?

Very unrelated, I am a younger founder and I am undergrad.

Is there any possibility to get an internship position, I would love to learn and experience how a startup works, especially Techstars verified companies.

Normally, I send them links for the waitlist which is my friends, and then I also meet people and pitch the idea to them and see if they are interested. it is more of finding the people who are going to be my customers than getting a few of them to sign up.