I apologize for my ignorance but I just want to make sure I understand the question. You would like to drive your AUTOMATIC car like it is a MANUAL car without the hassle of purchasing a MANUAL car? Is this correct? You can afford to purchase an automatic car which is more expensive than it's manual equivalent?
Are you angry at your parents? Do you want to destroy your car so that your father who must work very hard all day can go out and waste his money to buy you another toy?
I honestly hope that I am wrong and that you worked and purchased this vehicle yourself. If that is the case then you must be doing very well for yourself, messing up your car as a past-time.
But here is a response to your question:
1) Purchase racing gloves, not to be confused with weight lifting gloves. This can be confusing as both have the area that covers the fingers cut off. This will allow for maximum grip on the steering wheel as you use your other hand to change the AUTOMATIC transmission gear.
2) Special racing shoes. These are designed to give you maximum comfort on your left foot as it will just be sitting there idle and will start to get numb and sore.
I think I am going to end this here as responding to this any further might result in me having a migraine attack.