what's wrong with my nginx configuration

I have two servers:

server 1 - 192.168.0.1 - have nginx and apache2 installed apache listen port 8000 nginx listen port 80 nginx is a load balancer and TLS termination

server 2 - 192.168.0.2 - apache listen port 80

https is working perfectly.

the problem is : if the traffic is direct to server 1 then 1. http://test.net:8000 did not redirect to https 2. http://test.net:8000 expose port 8000, when I expected it hidden to the world

I’m new to nginx, how do I improve my configuration beblow:

=================

upstream testpool {
	least_conn;
	server 192.168.0.1:8000;
	server 192.168.0.2:80;
	}

server {

    server_name test.com test.net;

    listen 80 default_server;
    listen [::]:80 default_server;

    #redirect non http to https
    #return 404; # managed by Certbot
    #not recomended rewrite ^ https://$host$request_uri;
    return 301 https://$host$request_uri;


}

server {

    server_name test.com test.net;
    listen 443 ssl default_server;
        
    #ssl section, listen 443 is new way of ssl on;
    ssl_certificate /etc/letsencrypt/live/test.net/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/test.net/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

    location / {
	resolver 8.8.8.8;
		
	proxy_pass http://testpool;
	include /etc/nginx/proxy_params;
	#return 301 https://$server_name$request_uri;
    
	}
}