Will i run into any problems changing my sparkplugs myself?

Not if you are careful. You will need a sparkplug socket of the proper size for the plugs. The sparkplug socket has a rubber liner to help avoid damage to the porcelain section of the plug. Remove the plug one at a time and the wires will not get mixed up. Remove the plug wire by grasping it as close to the plug as possible, twist it to break it free from the plug and then pull it off. Blow out the area around the plug to prevent dirt from getting into the threads or cylinder. Now remove the plug by turning it CCW. Insert the new plug and turn it in using fingers to be sure it is threaded correctly. When it finally is all the way in use a torque wrench to finish. You will need a torque wrench and know the value to tighten the plug properly. Now most backyard mechanics and even some garages do not use the torque wrench. But you are doing this to your car for the first time, do it right. Modern vehicles have aluminum heads and the plug is steel....too much force and the head is damaged and major repair bill is coming. Plugs today on good running engines especially Fuel Injected ones should last 100K miles.

Hey you shouldnt, just be very carefull with them, a cracked plug will cause a misfire and if you crossthread the holes in the block you will be stuffed... just dont drop them and make sure you start them with your fingers before you attatch any kind of tools, its also a good idea BEFORE you take the plugs out to blow the holes with compressed air to get all the **** out, this will make them easier to start.