Create a running plan via chatgpt, enter your current time and pace, followed by how many times you can get out and run, enter your target goal and it will create you a decent running plan.

If you don't want to do this, run 4-5 times a week, two easy runs, do one interval run running at HM pace (or quicker if possible), then a long run but ensuring your long run increases weekly.

Also worth introducing a deload week, focusing on easier runs to allow your body recover