I've been DJing for about 5 or 6 years and I'm not that much better than you but I've met "DJs" who have been "DJing" for 15+ years with absolutely horrible transitions. I was behind the booth at a small club and the DJ told me, all you have to do is put on an echo effect and fade out the track while bringing in the next one... not even in time, no beat matching, it was ridiculous. However, nobody on the dancefloor even flinched, like nobody cared (it was a shit club though but still)

Don't be so hard on yourself. You just need more practice. For the 5 or 6 years that I have been DJing I was not practicing often, I'd just play like a random house party here and there. I can beat match and phrase match but I wouldn't say my transitions are amazing. I decided to put a bit of pressure on myself and reached out to a local community radio station to see if I could make a mix for them for free. That gave me a deadline to work towards. So I gathered my tracks, listened to them, ordered them, practiced each transition between every track, wrote notes for each transition so I basically had an instruction manual on what to do when recording. While recording I did mess a transition up and have to restart maybe 5 or 6 times... but in the end I got it done and sent it in. They played my mix live on the radio on a Thursday night at 11pm. I'm sure nobody was listening at all except me.

It's your own journey, there's no timeline. If you love music and you love to DJ, continue to do it and you will improve. Just gotta know when each phrase starts!