Huge congrats to you! I ran my first half marathon two weeks ago- I was really aiming for a sub 2hrs but ended up finishing in 2:02:23... oh well, still good!

Anyway, just like you, I have my second half marathon coming up at the end of October and I also have a few 10Ks scheduled until then. What happened with my first half is that I decided to sign up for it just 5 weeks before and although I wasn't starting from 0, I think 5 weeks of proper half marathon training were obviously not enough. What I'd suggest you to do is to take it easy for a while (i.e. follow a 10k program to properly train for your 10Ks) and then start your half marathon program in August. The one I will follow is 10 weeks long so I will start it during the second week of august or so.My weekly long run until August will always be 10 miles long though. During these months, you should probably focus more on speed- you got the base, now you need to maintain it and become faster! Also, do you run hills? Although you said that the half in Oct is flat, you'll get much faster if you do hills repeats at least once per week! Last suggestion I always give is to join a running team if you can/want to- I did so back in March and my running improved considerabily! Also, they provide me with a weekly plan so I know exactly what I have to do in terms of daily training.

GOOD LUCK!

During these months, you should probably focus more on speed- you got the base, now you need to maintain it and become faster! Also, do you run hills? Although you said that the half in Oct is flat, you'll get much faster if you do hills repeats at least once per week!

GOOD LUCK!

I don't agree with this. This is not the time for speed work, it's the time for base building. The HM is 98% aerobic anyway, so building the aerobic base is going to give you a lot more benefit. Speed work can really only be built for about 6 weeks before it no longer has any impact and then it will only really "stick" for about another 6 weeks before you start to backslide. Then you go back to base again.

Also, hill repeats are a strength exercise that should be done prior to the base phase. The type of beating that your legs take from doing hill repeats does not work well with base building phase, so they are usually done during lower mileage weeks. Now, running hills on a regular basis as a part of your easy runs is a totally different story. By all means, seek out hills for your every day easy runs.

Agree with Carson, the more miles you run the better prepared you gonna be, I would slowly increase long runs until you get to 16 miles, you have plenty of time before your next half to get to 40-50 miles per week, you really don't have to follow any specific plan increasing your weekly mileage is all you need.

Yup, another vote for Carson... keep on increasing and maintaining your base, along with a couple hills along the way for added strength!