How to organize traffic correctly?

Question

Computer networks

Good afternoon!
I am learning something new for myself, I am completely zero in this. I don't understand Ubuntu or networking or anything. It's just interesting for yourself to deal with it and tinker with it. As a result, questions arise.
Now there is a VPS from AmazonWS with Ubuntu on board, on which a VPN is raised ( https://github.com/hwdsl2/setup-ipsec-vpn) . Part of the home traffic goes through this vpn - mostly sites on Cloudflare that are safely blocked by my provider .
Home Mikrotik hap Ac2 is connected to this VPN.
Behind Mikrotik is a small home webserver.
Mikrotik does not have a white IP. Ie you need dyndns as I understand it?
AWS has a whitelisted IP address. There is a domain that is tied to this IP. How to originate traffic to the home web server?
I understand that you can set up a web server on AWS, but I want to organize just such a scheme.
According to my reasoning, it is necessary to raise dyndns on AWS and somehow forward ports using routing? Or given that there is a VPN, dyndns is not needed?

upd. Actually, I would like the site that is running on the home web server to be visible on the Internet.