user18105: I started playing chess in July. I was at a 600 rating on Chess.com for a month. I started playing seriously in August and have played regularly (at least a few blitz and rapid games everyday). Currently, I am rated 1300 on Chess.com after 800 games(10 minutes). I seem to have moved past my blundering days (although still blunder every now and then). I also play shorter games on lichess (rated 1400 on blitz). 
I haven't really read any literature yet. I started reading Logical chess by Chernev. I play the games out on the board and they are fascinating but I don't see how I can improve with them. Also, I do puzzles on lichess frequently. I haven't seen any significant changes in my thinking process recently when I play games. What's the next thing I should do? 
My goal really is to be able to create and execute longer plans in the game while being able to read the opponents plan and defend. I was told this corresponds to the ~1900 rating range, so that would be my target (rating wise) by the end of 2019. 

user9025: Unless you're Magnus Carlsen, you pretty much never move past the blundering stage. They just tend to be smaller blunders.
In addition to the advice in this answer, I highly recommend analyzing your own games. Those are two of the things that helped me jump from around a 1400 USCF rating, to eventually breaking 1700, before dropping back down to my current rating of ~1600. That still took me a few years, though, mostly because I was usually one of the two lowest rated players in the small local tournaments I played.
If you can get a coach, or even a stronger friend to train with in person, that is very helpful as well. They can more accurately pinpoint exactly what you need to work on to improve.

user825: This is an open-end question. My recommendation is join serious face-to-face tournaments where you play games at the classical time control. Playing blitz is fun, but not a good idea for learning chess.

18105: <p>I started playing chess in July. I was at a 600 rating on Chess.com for a month. I started playing seriously in August and have played regularly (at least a few blitz and rapid games everyday). Currently, I am rated 1300 on Chess.com after 800 games(10 minutes). I seem to have moved past my blundering days (although still blunder every now and then). I also play shorter games on lichess (rated 1400 on blitz). </p>

<p>I haven't really read any literature yet. I started reading Logical chess by Chernev. I play the games out on the board and they are fascinating but I don't see how I can improve with them. Also, I do puzzles on lichess frequently. I haven't seen any significant changes in my thinking process recently when I play games. What's the next thing I should do? </p>

<p>My goal really is to be able to create and execute longer plans in the game while being able to read the opponents plan and defend. I was told this corresponds to the ~1900 rating range, so that would be my target (rating wise) by the end of 2019. </p>
 9025: <p>Unless you're Magnus Carlsen, you pretty much never move past the blundering stage. They just tend to be smaller blunders.</p>

<p>In addition to the advice in <a href="https://chess.stackexchange.com/a/23286/9025">this answer</a>, I highly recommend analyzing your own games. Those are two of the things that helped me jump from around a 1400 USCF rating, to eventually breaking 1700, before dropping back down to my current rating of ~1600. That still took me a few years, though, mostly because I was usually one of the two lowest rated players in the small local tournaments I played.</p>

<p>If you can get a coach, or even a stronger friend to train with in person, that is very helpful as well. They can more accurately pinpoint exactly what you need to work on to improve.</p>
 825: <p>This is an open-end question. My recommendation is join serious face-to-face tournaments where you play games at the classical time control. Playing blitz is fun, but not a good idea for learning chess.</p>
