Engine not starting

It sounds like the battery is low on charge if it is more than three years old I would replace it. If the battery is good then the starter needs replacement. Here is a guide that will help you see what you are in for when doing the job:

https://www.2carpros.com/articles/how-to-replace-a-starter-motor

I would remove the battery and take it to your local parts store and have it tested to make sure it is holding a good load. Call around first to make sure they test battery's and starters. Then if that tests okay remove the starter and have them test it. Let me know how it goes.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Please let us know what you find so it will help others.

Best, Ken