How should I deal with this possible ear infection?

Starting yesterday, my Ear Felt Slightly Full, Through out the day and today it’s gotten steadily worse, I tried Pouring Small Amounts Of Rubbing alcohol into my ear, which makes the Tenderness Go away as well as making it feel normal For About 20 minutes. I Do Tend to use Q-Tips to Clean my Ears at least once a day. I have had a Stuffy nose for a few days, so I’m wondering if this may just be ear Congestion or a full blown ear infection, Any Thoughts on this? Also I feel it’s worth noting that if i Apply Pressure Behind the ear All of the Congestion and Tenderness Disappears for as long as I Maintain this pressure

My Question would be Is There any Sure fire way to tell if i have an Ear infection as well as Any way that i could Treat it from home, Besides the methods I’ve mentioned before of course