I will be driving there alone. Where do you park? Are there signs?

There is a parking lot

There is parking right at the base of the hill the chapel is on. You can't miss it, since you have to go through the parking lot to get to the trail that brings you to the chapel.

Drive as far up the road as possible. You will get parking once someone is leaving since people are constantly coming and going from that location.

Handicap parking at the very top.. Parking lot fills and empties all the time.

there is a lot of parking. they even have people in carts that will pick you up and take you up to the church

Because of the demand parking is a big problem.

There is parking, different tiers of parking and signs. Enjoy

Yes there are signs and 3 levels of parking

There are parking spaces from the entrance up to the top part of the hill, near the base of the church, where there's a handicap parking too.

There is a parking lot below but there is also one up on the upper part closer to the top of the chapel. They fill up quickly but it's worth a check