Hi guys,
I am in my third week of GMAT preparation and I noticed few things.
I felt like I should refresh my math skills so I started my preparation by working through Manhattans GMAT Math Foundations. Right after I started with Manhattans Strategy Guide. Following the order of books, I am currently working on Algebra. I try to summarise and take notes on the most important things I learn. Sometimes I do the problem sets (no actual GMAT problems) after a chapter, sometimes I just skip them to not waste too much time. After finishing a chapter on a certain topic, I do few official practice questions in the Official Guide. And since I am still kinda at the beginning of my prep, these OG problems take me so long as well...
Now, I feel like am not working in the most efficient way. It takes me so long to work through all the books. I can already see myself working waaaay to long on math and accidentally neglecting verbal completely because of a lack of time.
Do you have any tips on how I can
optimise my preparation?
The GMAT prep is currently the only thing I do, so I am investing all day in studying. Still, I got the feeling that there is no actual valuable progress yet
Thanks in advance for everyone who can help!

I think it's too early for you to think about the time management. Having said that, you might have to tweak your approach a little for GMAT prep. Make sure you follow the following steps for each topic.
This is the right approach to prepare for GMAT. Do not worry about the time during the initial stages of preparation. Just focus on the process and the results will come your way. If you need any help regarding the GMAT prep, feel free to get in touch using the below link.