I recently started playing nw again (used to play years ago) and i wanted to play a wizard. Bought the general noxx's boost pack and used it, now i am kind of at a loss at what i should be doing. Any tips would be welcome (including build tips, tried searching for them to no avail)

Welcome to Neverwinter where everything is confusing unless you study lots of Neverwinter YouTube videos.

As for builds, use what works for you and ask different people in different guilds.

If it feels weak, try something else new. I don't have an answer for you to really help you out. I'm still trying to figure out what works best for my wizards.

I use arcane. I use force push, force grab, force shield, and icy terrain. I use lightning and ice for at wills. I know that it's not the best, but it's fun to see and feel like I'm a Jedi Dragonborn.

Look at lord willow on youtube he has builds for wizard I believe