I'm sorry - I really didn't mean to ruin your day! It wasn't meant as a slap in the face - just a fact. Speed really comes naturally as you start to get lighter.
For example, I started running with my boyfriend (who is maybe 155 lbs) when I was somewhere between 180 - 185. He was going slower than was natural and I was doing my best to keep up with his slow jog. But, if you think about it, with every step on the hard pavement I was carrying an extra 20-25lbs! This gets really difficult after 3 or 4 miles.
Now that I have slimmed up and am about his size (although, darn him, he is still thinner!), we both run naturally about the same speed - he's not slowing down for me anymore.
In regards to building endurance and speed, the marathon runners I know train for either speed or endurance on separate days - they don't tackle both the same day.
In the end, in the years I've been jogging, I've suffered many injuries that, quite frankly, could have been avoided if I would have gave myself time. It is SUPER frustrating, when you love running, to literally be forced to stop in order to heal. It can easily lead to depression.
Actually, now that I realize running becomes more enjoyable the thinner I am, I am
really looking to running at 140-145. Speed and less injuries tend to naturally come with being thinner - that part was really not meant as a diss of any sort. At my highest weight ever, I was 230 lbs. There are absolutely no judgments here.
Best of luck! Running and controlling calories is amazing for dropping pounds and lifting moods. I'm sorry for writing anything - I guess we all need to make our own good and bad experiences when it comes to running, not be told by others what is good or bad. Its sort of like falling in love...
