At 690 you can safely move to 30/0 with a view of migrating to 60/0 around 800/900.
You'd be surprised how the opponents' level of play improves the closer you get to classical time controls, but don't let that discourage you. You're doing the right thing and you're on the right track.
Enjoy!
Just wanted to register my own progress and I thought it could be useful to share it, if this can help other beginners. My brief Chess story so far: Learned how to move pieces when I was a kid, never touched the game for 25 years until the 28 of September of this year. I quickly felt in love with Chess due to all the learning material, competitive aspects, challenging my brain and possible becoming a long term hobby. My short term goal is to achieve the ELO of an average player, medium term to beat a colleague that plays already for 30 years (without studying much) and long term to be a decent locally (clubs and small tournaments).
Week 1
ELO end of the week: 540
Learning Material: Nothing
Comments: Started by just getting acquaintance with the game again. Already understood that just by playing I was not going to get better. On another topic: even though I love how easy it is to play games with my laptop or smartphone, my work requires 100% on-screen time so I was about to move to another hobby to avoid being all day on-screen, but I discovered e-boards. After some research I decided to get the Chessnut Air and what a nice experience it has been so far!
Week 2
ELO end of the week: 600
Learning Material: Started with Chess.com lessons (completed “Learn to Play Chess” and “From Beginner to Winner”), they really helped me to start playing with more meaning than just moving pieces because they can. Bobby Fischer teaches Chess (15%).
Comments: At the end of week, I realized that 10 min rapid games were not enough to really thing what I was doing. I changed this to 15|10 and I could quickly see a change in my decisions AND better decisions from opponents as well. Also, since the (brief)theory I owned allowed me, I started to realized some weak points I had already (beside making stupid mistakes of course).
Week 3
ELO end of the week: 690
Learning Material: Chess.com (“Think Like a Chess Winner” 87%), Bobby Fischer teaches Chess (50%) and since I was looking for something beginner friendly that helps me to understand how to think my moves, I also added Pandolfini’s Ultimate Guide to Chess (50%), I really like the style of the book, which is a conversation between a Teacher and a Student. The student actually ask a lot of questions I would've also think of.
Comments: I added a personal rule in which if I lose two games in a row, I have to either open a book or continue with Chess.com learning path. At this stage also I am realizing that I could win by only not making basic mistakes, probably this could carry me on until I play people that uses tactics and strategy consciously.
To be continued…
Please feel free to comment, recommend, hate or anything.