You take it at your own pace. I mean, technically you are stepping out of your comfort zone by checking something new (which is a good thing imo) and i'm sure you'll getting used to the ui sooner rather than later. It's rally minimalistic and not bloated with hundreds of buttons. I welcome you as well on lemmy.

PS: If it helps you somehow, remember that there was a time where reddit was not a thing until someone made it and it was.