Tips to grow my ed-tech start-up?

Hello Hackers and Happy Hew Year,

I would like to share with you our short story and the problem that we face:

So we are building for the past couple of months an Ed-tech start up named Troosh.

Troosh is an interactive mentoring application that enhances the learning experience in a variety of communities by promoting interpersonal relationships between Mentors and Mentees, while also facilitating collaborative work (you can find more information about Troosh here https://troosh.app/).
Now the problem that we face has to do with the chicken and egg problem. From the one hand we want to find users in order to have a solid user base to attract mentors and from the other hand we want to find mentors in order to attract users more easily and massively. From the time being we are focusing in fining mentors through IG DMs and through cold emails, so far with the mentors that we have talked we have gathered some useful feedback and most of them are seem to like our idea.
But even though they like the concept of Troosh, we have a very difficult time to 1) get an answer from an email or DM and 2) to actually convert the ones that answer to Beta Testers and early Mentors.
Please feel free to reply if you have any suggestions on how we can promote our app more efficiently.
Thank you for your time and I wish you a great success this year in whatever you are building.