Can't turn key in ignition. No, it's not because the wheel is locked.

What is your question?

The last few days I haven't been able to turn the key at all. I've tried making sure the steering wheel isn't locked, I've tried spraying out the hole with air to clean it. It's like something is sticking. Sometimes my husband can start it. But it takes a couple tries. I feel like I have to be the hulk just to turn my car key.