Benny Hi
I'm not sure if this post is serious or a joke...
Here goes.
Firstly, get a PPL! Without this, you plan is flawed!
Secondly, to buy a twin is one thing. To get insurance on one is another as a low hours pilot.
Finally, a Citation ( I know they call it the near-jet) or a Lear you would need thousands of hours before an insurance company would look at you seriously. Also, said aircraft would (mostly) require two crew. In the US, you can 'rent' contract pilots on most types but be prepared to pay around 700 USD per day plus allowances for the pilot. Freelance pilots have to pay for their own recurrent training at the likes of SimCom or FSI, which doesn't come cheap. They have to recoup this cost somewhere.
Older jets cost money to operate. Could you afford to pay for the likes of JSSI support? If you don't know what it is, maybe you should google it. If not, a new FMS, windshield, PFD/MFD could well each cost you more than a new family car. It's not cheap, believe me.
Good luck though.