I suppose that that would be considered an LD, and as for actually doing what you want:

What technique do you use, if any?

Have you tried planning before going to bed? Remember your plan when you become lucid, and it will help you achieve whatever you wanted to do in the plan.

you may have already heard this/tried it, but look at your hands, or, even better, grip onto an object in your dreamworlds and keep telling yourself that you are dreaming, but that you want to stay lucid. Focus on how real the object(s) feel. This greatly helps as well. Doing many reality checks with this also helps.

*important*: Getting exited, especially whan having your first LDs, can cause you to lose lucidity/wake up. When you can't move, this is probably making you panic/worry, even if you are not aware of it. Although it may be hard to control, try to, as keeping calm, but not losing focus, will help you stay lucid in your dream.

PM me with any other questions you may have.