@Alan Shen Welcome to Bigger Pockets! I would say what you should do depends on what your goal in real estate is. If your goal is to get into owning rental properties, I would recommend that you follow Don's advice and try and do a house hack. I know that's super difficult to do in LA, but you may be able to buy a small apartment, rent out the rooms, and sleep on the couch. It's not ideal, but it may be what you need to do to get started.
If you're looking to flip houses, I would recommend finding someone that is already doing flipping and figure out how you can add some value to them. For example, you could become an inspector, or become an expert in estimating repairs. Just something to help you stand out and add value.
If you're looking to wholesale, I recommend you learn about lead generation, pre-screening sellers, and deal structuring. There are endless resources about these topics, but I recommend checking out Brent Daniels, Todd Toback, and John Martinez for pre-screening. Check out Ron Legrand for deal structuring.
With all of these, you should try to network as much as possible! There are many exceptional people in your market that are doing exactly what you want to do. Talk to these people and be a sponge. Attend your local REIA event (virtual or in person).