I want to remotely coect to my computer

I am using Reliance 4G mobile inteet (i coect through mobile wifi hotspot to pc), my mobile has been assigned a ip of 10.x.x.x network (private) and , when i use hotspot my pc is assigned ip in network of 192.168.x.x , Now I want that I,or somebody else.. can remotely coect to my pc, (This was easy while using Landline Broadband coection with help of port forwarding technique,) Now as i caot port forward, Is there any way to accomplish this task. I googled a lot, there I found solution,... to use VPN, so i configured OpenVPN on my linux machine.. VPN Coection was successful (I used free vpn service and trial vpn services) and my public ip was also changed.. but still I caot forward any port or caot access my system through inteet. Please provide me a solution.