Don‘t be afraid! Changing the belt is really easy, in case that‘s the problem.
First: give the intake a bump with your hand to knock it out of it‘s locking position.
Then rotate it up ~90degrees and remove it.
From the top you have access to put a 1/2“ ratchet into the tensioner. The main challenge here is you might need to push it around the fan once the tip is t the right place. I used a ~20“ ratchet.
On the front, hidden by the unopened hood you should have a sticker similar to this one.
Choose your engine, take some pictures.
Once the tensioner is in you push it aside and the belt gets loose. Take it off the first wheel and release the ratchet.
Then take it out.
Take the new belt and fiddle it around (this is where the pics come in ;-)).
You might need to do it from the top or below.
Then check that the tensioner is somewhat in the middle of all pullies/ wheels, turn the ratchet again and put it on the pully. Release the ratchet and it should be in place.
Tuen the engine on shortly, turn it off and check the position.
All good? Then proceed your way.
If not, ratchet into tensioner and realign position.
The only thing that‘s easier in the video is that you get habds everywhere.
But the general procedure is really as easy as in the video.