Don't give up. Wikitree can be very daunting.
I have been a member for a few years and just now trying to figure out how to add sources correctly within profiles. (I have put them in there, just not very well. :) Yesterday I was so frustrated trying to figure out how to make them look like other folks make them look I wanted to throw my computer through the wall. I happened to notice a post someone made about an "Excellent Profile" so I checked. It is excellent. I printed it as if reading it, then printed as if editing. It will be a GREAT resource for myself. Just an example. I think each person finds their own strengths on this site, and their own weaknesses. There are so many willing to help. Go slow, take your time.
If you are adding someone, make sure that person is not on Wikitree already. Trying to make everyone here connnected, as we all are. So someone in my line might be linked to someone in your line along the way. If they are already on here, you can easily link them to someone in your family that you have already entered. I LOVE that feature, make sure I check each time if I can. I don't have to do anymore typing if I can link someone. :) Just link them by using their profile number.
'Course, is isn't all that easy. Wish it were. Keep your chin up. It will get easier with time and practice.
Don't forget, you can always ask too. Many here are willing to help whenever possible.
Have a great day.