If you need help making the /l/ sound, watch this video. Remember to put your tongue at the top of your mouth, behind your teeth.
To practice speech sounds at home, try to aside 15 minutes a few times a week. Spend the first 3-4 minutes going through a word practice list. Then try practicing the sounds in a more natural activity, such as reading aloud or playing a simple game. See the Articulation page for more practice activity ideas.
You can use the colorful list for younger children who are just learning how to produce the /l/ sound at the beginning of words. Use the black and white list for children who are ready for more of a challenge. Going through these words for just a couple of minutes a few times a week will really help your child's progress! You can either pull them up on a device or print to put up on the fridge or somewhere you will regularly see them! Your child may need you to model the word for them first, showing them that the tip of the tongue goes up behind the top teeth. Older children may be able to practice more independently.
I have lots more where this came from! I have many more resources that I just can't legally share on this public site. To request more materials for your child's specific goals, contact me! I will email them directly to you.