You can look at LL's website to see a map. It is laid out like a big circle with the Miniland area in the middle. Miniland is the walk through area where they have all the models of Las Vegas, Washington DC, etc, and now the new Star Wars area.
I have had good luck going on the right side of the park and starting with the Technic coaster then continuing counter clockwise to the Adventure/IJ area then to the Dragon Coaster and Knights tournament and I just keep going around the park until I have hit each land then you can go back and hit stuff you want to ride again. If you are really into the coasters I would try to ride back to back in the early morning because lines will build.
Going left and staring with Sky Cycle is another strategy but I just skip that ride now because the lines just get soooooo long and IMO it is not a great ride. You sit on a bike thing and go about 5 miles per hour on a track overlooking part of the park. There are so many other cute ones. I love the boat rides. I like to get an ice cream and do Miniland in the afternoon when it is getting hot and lines are long. They have an ice cream place that swirls in flavors at the front entrance of the park and there is a good snack place with healthy grab and go snacks- cheese stick, yogurt, natural cookies, juices. The pirates water play place will get super packed so I just avoid that also, but it is up to you.
I have never had a problem getting on every ride I wanted to during a day at LL even in the dead of summer. Study the map, look at height requirements, figure out what you want to do and have fun!