Thank you Mate ! Maybe we can meet haha.
So i mean when u want to build someting did u make with own ideas or just copie from youtube, cuz every time when i watch lets play, the guys realy know what they do and have great ideas or know how.
I mostly have not own ideas and its a bit piss me off that cant do choices and figure out cuz im noob
Best thing to do, expert or newbie, is to answer the question: "what do I want to do?". I don't know what modpack you're playing, but you either go with tech or magic. Independently of the tree you pick you'll need resources (this is just a simple iteration you'll be doing, even if unconsiously). If you need resources you need to figure on how to get them. You either dig, or find some other way (quarries, bees...). At the start you have no option but to dig, anyway...
Once you figure how you want to go about getting resources, you might consider on how to store them. A jumble of chests, or something more elegant (or messy; it's aobut your taste). A technological compact marvel wich offers all the storage you might need for thousands or millions of items in one or two blocks (Applied Energistics)? Or a flashy networking of pipes that let you see your stuff going where you sent it (Logistics Pipes)?
Once you find yourself with a crapload of ores you might consider what is the best way to get more out of your ores (again, some modpacks have more options than others). Shoving a piece of iron ore into a vanilla furnace gets you 1 Iron ingot. If you pulverize it with a machine you get two dusts that can be smelted into 2 ingots. If you shove the ores into a smeltery, you can get double output, etc, etc, etc.
Also, something that could be considered at any time: gear. Weapons, armor. On Infinity there are a lot of options. Some easier than others.
Then, if you chose to use some or a lot of tech: power. How to get it? What to use? Steam power? Mana converted to power? Solar power?
This might seem a lot, but there is a lot more. Just take it easy and do it slowly and steadily. Eventually you'll find yourself in a floating castle in a void dimension created by yourself with a lot of stuff set up and still a lot more to do.