Hello and welcome to just answer,
There is a lever on the handle that pulls the latch rod that typically cracks and lengthens
the distance need to pull the latch, to repair this the inside door handle is replaced, sometime the latch rods stretch at the bends also and you can shorten them a bit by bending them a little.
I am sending instructions for door panel and door handle replacement.
You will need a door panel tool to pry the door panel retainers from the door you will also need a drill and bit to drill out door handle rivet, you will need a rivet gun to reinstall the rivet, (you can use a screw in place of the rivet but not recommended)
Also you will want to get a few extra door panel retainers because a couple will usally break in the process of removing take one of your old ones to the part house to match it up, I have done several dozen of these and always manage to break one or two.
Below is an example picture of the door panel tool, a part house will typically have these for around 5-10 dollars each.
First, Door Handle Bezel Replacement (Front Door)
Next, Power Accessory Switch Panel
Next, Upper Extension Trim Panel
This is the triangle piece on the inside directly behind the mirror there is one door panel clip here and use the door panel tool to get behind it to remove.
Next, Door Trim Panel
Next, Inside Door Handle Replacement.
Reverse to install replace any broken door panel retainers.
Let me know if anything is unclear or if you have more questions
You can get them usually at an auto parts store. They are a hard plastic 2 peice design that holds the door panel well, but do poor job of turning loose.
Thanks for the accept and positive feedback.
If you get in the middle of this and have questions just reply back