Welcome to SRP and congrats on some nice gear. IMO there are two major causes for razor burn, too much pressure and/or the wrong angle. The pressure part you will have to work out on your own. Ya really just need enough to keep the blade on your face to shave if the blade is honed and stropped properly. As for the angle, it's hard to get the right angle when you use peripheral vision in areas like your neck. I had my lady friend watch me shave and tell me when my angle got too far out. After a while I developed a 'feel' for the proper angle and use the scales to help gauge it. Find someone to assist you and you'll improve quicker. I also shave in the evening when I am not rushed and can enjoy the shave.

Good luck and be sure to have fun as you learn.