Welcome to the forum.

I would suggest identifying your dreamsigns first off, these are regular occurrences within your dreams. Once you have identified these try linking your reality checks to them.

For example:

If you dream about cars a lot, every time you see one, look at your hands and quickly count your fingers, or try putting your finger through your hand.

This way over tie you will embed this process in your subconscious and when you come to a dream with a similar scenario an RC would be done in your dream and this should induce lucidity.

Good luck