Hi GymObsessed,
You're right to want to stop bouncing between plans. The adjustment I'd make is what you lock down: one sound method and one comprehensive resource.
The method that works stays the same regardless of your timeline. You study one topic at a time. Learn the concepts and techniques thoroughly, then practice only that topic, untimed at first, until your accuracy is consistently high. For every miss, figure out why: a concept you didn't know, a misread, a careless slip, or a trap. Redo those questions from scratch a few days later to confirm the fix held. Only once a topic is solid do you move on. Timing and mixed sets come later. That sequence is your plan, and it doesn't change month to month, which is the consistency you're after.
That structure is also the answer to your concentration problem. It's hard to focus when the task is as open-ended as "study for the GMAT," but much easier when each session has one clear objective. Give each sitting a single, specific target and the wandering tends to settle. It's also worth noting that about two and a half hours a week is light for the skill-building this exam demands; most serious students land closer to 15 hours.
On resources, a Quant course is a reasonable start, but the GMAT tests Quant, Verbal, and Data Insights, and you'll want structured coverage of all three. A clear, comprehensive, structured prep course isolates topics, sequences them from the fundamentals up, and tracks your accuracy, so everything runs through one system rather than scattered pieces.
Before you dive in, set a target score based on your programs, then take one free official test from mba.com for a baseline. That tells you the size of the gap and helps set timeline expectations, but it isn't the plan itself.
You've got well over a year, so don't stretch a light pace thinly across all of it. Study consistently and take the exam when you're genuinely ready. The length of your prep won't determine your outcome. What you do with that time will.
Here's a detailed walkthrough:
How to Make a GMAT Study Plan.
GymObsessed
From my previous post it's now understood that I should apply for my dream MBA college right from the get-go in 2027 so now my question is with so many guidance or study plans for GMAT out there what should I follow diligently throughout my preparation time from now till fall of 2027. I don't want to deviate from schedule to schedule so I just want to nail down on one single time schedule by taking your guys input and then make some tweaks according my own preference.
For context right now I am just doing quant from a udemy course by Jackson Kailath where I do like 30 mins of study 5 times a week. So need help as to how do I tackle my lack of concentration towards one particular topics