Welcome to the community! I think you're definitely have the time to prepare and to do very well on the GMAT and TOEFL.

Since you're at the very beginning of your prep, I recommend that you take some time to figure out a solid GMAT study plan. We have plenty of resources to help you figure out your plan, read through this section: https://prep.beatthegmat.com/resources

If you're interested in seeing one example of a self-study plan, you can also review my GMAT study blog: https://beatthegmat.blocked

After you put some thought into your prep strategy, go to MBA.com and download the free GMATPrep test software. Take the first GMATPrep test and see how you perform. If you're pretty close to your target score, then you may be able to devote somewhat minimal prep for your actual test. If you're way out of range, then come back and we'll talk about next steps.

Good luck!