[2Slow4U_Noob]

Ok I have a 95 Talon TSI with upgraded turbo, fuel injectors, and fuel pump. I also have a boost controller, boost timer, and an apexi fuel controller, and the stock gauges. How do I use all this to get the most out of my car without destroying it. I bought the car with all these components which was probably a bad idea since I don't know what Im doing. What settings should I set everything to and what should I look for in the gauges? Should I always run the car on the low boost setting unless I want to drive it hard? Is it ok if the air/fuel gauge always jumps around from rich to lean? Do I need to do anything with the apexi fuel controller? Thanks for you help.