Sounds like you are not mechanically inclined or adventureous.
It's not tough at all, but based on your post, your best approach
would be to simply find a local auto-upholstery shop and pay them
to fix the problem.

If you decide to try, then you first should see if you can locate a possibly
loose bolt that simply needs to be tightened.

Here is my rather vague memory relative to removing the panel.
Basically you need to remove the surround moulding at the corner
near the mirror. Then you remove the plastic trim piece under the
door pull. Then there is the connection between the rod the door pull.
I'm doing this from memory which is fuzzy. There are a couple of bolts
that attach through the panel to the door frame.

Once you have all those connections done, you need to push the panel
up. It's held at the edges by plastic clips. The clips are now old and
somewhat brittle. New ones are cheap. The dealer has a kit with all the
goodies.

Good luck,

Steve