Need help with Substance Designer

(Copy and pasted from other posts)
Im making a Call Of Duty: n@#! (Not sure if i can use that word) zombies game themed around the upcoming area 51 raid, an alternate timeline IF somewhere AROUND 300k people actually showed up and where only 4 gaurds (the rest assumed only 4 people would show up and decided it a better use of their time to spend it with friends and family) use tranquilizer pellets fired from Airsoft guns to fend of the Weebs. Now onto my problem

i want to make an web artist styled depiction of the utah Desert (which where area 51 is located) and i though that using substance designer is the perfect way of doing it. But long story Short its WAY too complicated for me to handle

So is there anyone MUCH more experienced & follow the following criteria

• Must be in high school
• Must be in 9th - 11th grade
• Must Be In Minnesota

That can help me create the materials found in the Utah Desert?

If not then are there any easier programs like Substance Designer That i could use?