Looking for feedback

As of now I have completed 5 phone screens and one onsite. I have more phone screens lined up but I need to work on a game plan to move quickly. I love to put things off and generally not super motivated but I have done 100ish LC problems across topics. I only got through one phone screen as of now -Facebook but onsite did not go well and was rejected. I study for 3 hours a day. Any advice on what else should I do to make this process quicker ? And please share tips on study techniques that help in general!