Can I use a VPN like HMA on a VPS ?

don't do that it will change your VPS's ip address which mean you will can't make a connection with your VPS
i tried it once get vps for the first time just you can use proxies

it's ok with HMA , you can change ip without disconnected , but for another you will need to manual OpenVPN

Instead that simply get Private Proxy and use it when you want

it will be same IP as static not changing.

Without admin privileges it might be tricky. Try OpenVPN. Unfortunately I think you're going to need admin privileges to be able to run it, but don't quote me on that. I would definitely try it. Most any VPN place will have OpenVPN config files. All you do is install OpenVPN, then go to the config folder and paste in the .ovpn files from w/e company you have the VPN through. I thought I read somewhere that if you're using one of the Windows Server OS's you don't have to run as admin, which is why I said to try it out, but I know for my home PC if I don't run it as an admin, it'll look like it's connected, but if I go to any "what is my ip" sites, it'll show my real IP instead. If it were me though, that's what I would try. Good luck with it.