First of all if you are one person trying to drive the price up or down on one thing it won't work. You will need a lot of people to do this.
You will need at least 100 people to do this.
People don't realize that buyers and sellers are the price controllers If you want to drive the price down you need you and your friends to all start buying and selling at the price ou want it to be. if people want to sell their resources then they will have to start selling at that you are selling at as the buyers will see that they can get the resources they want at a lower price and jump on that opportunity,
To drive the price up all you need is a bunch of your friends. You and your friends should all have a lot of money. All of you will have to start buying at the price you want it to be around and then the sellers will see how high your buying at and they will sell their resources at that price and if anyone else wants resources they will buy at that price as well.
If you have questions please ask them.