Welcome to the forum (ﾉ^ヮ^)ﾉ*:・ﾟ✧
How much time do you have available to study every day? There’s definitely a lot you can do in seven months. The most important thing I can recommend is starting a grammar source asap. Since English is your native and only language, Japanese grammar and sentence structure are going to be a beast. Genki 1 is designed to take 100 hours, so if you do half an hour per day you can finish just in time.
Starting simple reading and listening quickly is also a good idea. For reading there’s the absolute beginner book club, and for listening there’s Comprehensible Japanese on Youtube.
As for WK, you don’t really need to go super fast. Level 10-15 sounds like a good level to shoot for. By level 10 you’ll know all the kanji that a Japanese first grader knows, and by level 15 you’ll know 80% from third grade and 50% from fourth grade:
For an in depth guide, you might be interested in this post.