Hey,
To reach 400k view on your blog, write about topics people are already looking for and explain them in a clear, honest way. Stick to one main subject so readers understand what your blog stands for. Post regularly and make sure every article helps the reader in some way. Share your post on social media and in groups where people actually care about the topic. Keep improving your old post instead of forgetting them. Most of all, stay patient and keep going, because real growth takes time and consistency.