I've made beer in the past. Strong, belgian style beer.
I wonder what you bought though since there's a difference in equipment for making beer or wine
My tips:
1. READ a lot
2. look up brewing recipes that have been proven to work
3. do the MATH correctly
4. work precise. If the recipe calls for the brew to be kept at a certain temp for a certain time, try to make sure it does that.
5. be CLEAN when working. It's easy to ruin your brew. It won't make you sick but it'll fuck your brew up.
6. MAKE NOTES. Document EVERYTHING. If you succeed, you want to succeed again next time. If you went wrong, you can figure where and why it went wrong from your notes. I can't stretch this enough.