If that's your first practice test, then 360 is your baseline score. Things will improve from here. The good thing is that you probably have a good idea of how much work it will take to reach your target score.
You won't be the first person to get 360 on your first practice test and then crush the GMAT after studying. If you check BTG's "I Just Beat the GMAT" forum, you'll find several such stories.
Okay, where do we go from here. I suggest a systematic (even methodical) approach, in which you take the time to master each topic/concept (e.g., percents, ratios, assumption questions in critical reasoning, comparison questions in sentence correction, etc).
So, for each topic/concept, you should:
1) Learn the underlying concepts (rules, attributes, notation, etc.)
2) Learn GMAT-specific strategies related to that topic
3) Practice dozens of questions all related to that one topic.
4) Don't stop working on that topic until you have mastered it
Then, and only then, move on to the next topic.
You should also use an Error Log (aka Improvement Chart) while completing questions from the Official Guide (OG). You can find a free downloadable Improvement Chart here:
https://www.beatthegmat.com/mba/gmat-error-log. This will help you identify and strengthen your weak areas.
I also suggest that you spend a lot of time reviewing the responses from the Experts on this site, since they often model the steps you should be taking when answering question.
In addition to learning the core concepts and GMAT-specific strategies, be sure to work on your endurance and test-taking skills (e.g., time management) by taking several practice tests.
If you're interested, we have a free GMAT time management video at
https://www.gmatprepnow.com/module/gener ... es?id=1244
As you might guess, all of this will take a lot of work. So, depending on your target score, you may need more than 1 month to prepare. Of course, you subsequent practice tests will give you an idea of your rate of improvement, and a better sense of how long it will take to reach your target score.
Cheers,
Brent