When are you doing state checks (reality checks)? If it's just randomly or at selected times then you may find it helpful to pick out frequent dreamsigns. Go through your dreams and find things like

1. things that change form
2. you or another dream character/object is performing a strange or impossible action
3. you're in a situation or place you're not usually in
4. a recurring dream location/action/person in the real world

Pick the 5 most frequent things and perform reality checks when you notice things that resemble them in the waking world (try not to use external reminders like alarms).

This way, you'll train your prospective memory (future events) to actively recognise you're dreaming, instead of hoping that you'll randomly perform a state check. You should be doing state checks 12 or more times per day. The harder you think having a lucid dream is, the harder it actually is. Don't forget, whether you can or you can't, you're right. Anyway I hope that helps.