Here is my suggested solution.
1. Research computers to determine exactly what you will need and taking into account your concerns about the unit you purchased.
2. That search will likely point you to an ideal machine - hopefully within your budget - and you will know exactly which machine is just right.
3. If it ends up being the machine you have. Keep it and run it. If not, return it and get another machine.
Don’t mess around trying to make a box do what it was not designed to do by the factory.
Fer realz?