u/Good_Ask_7503

Hi, my current PRs are:

5k: 27:41 (2026)

10k: 56:13 (2026)

Half: 2:10 (2025)

Full: 4:52 (2026)

I just finished my first marathon and has been running 4 times a week. My next race is October. How likely is it to achieve a 2 hour half or even a sub 2 hour half in 4 months? What should my trainig plan look like and weekly milegae should be? How many of my runs in a week should be speedwork?