You need more than 1 day of rest a week. You can't train hard if you're not recovered from your last workout. And this can (and does) sneak up on you. Training hard is limited by recovery. That's one of the reasons I suggested, and the other guys suggested, the full-body workouts. Taxing, but not localized over-fatigue (which you don't need at your level), and it allows you to rest more each week.
A few things I've learned over the years:
1) Never stop learning. You have to read everything and learn to think for yourself. If you don't think for yourself, you're doomed to failure, and at the mercy of everyone with something to sell you. If you stop learning, you're doomed to failure. This goes for every aspect of your life, even (maybe especially) outside your training.(trust me, I've learned the hard way several times).
2) Don't quit just because you're not sure what to do. This goes with 1 above. Suffer from analysis paralysis, you're doomed to failure. Train, modify as you go. If you're confused, stick with what's working. If it's not working, there's a reason, maybe one you don't want to hear. Find it and fix it.
3) with 2 above. Don't make excuses for yourself. If you do, you're doomed to be limited by your mind and be one of those sad sheeplike follower people stuck with something they hate. Success relies on ethics, hard work and hard thought. Sure, sometimes you can't achieve something (like win a Nobel Prize), but never stop trying.
4) with 3 above. Control what you can. Let the rest go. You can't do anything about that.
5) Don't seek fatigue, manage it. (sorry for stealing Mr. Staley!)
6)If you do the same thing you've always done and expect a different result, you are doomed to failure. Keep an open mind.
7) At the same time, there's such a thing as having a mind so open it just....leaves. Don't do that.
8) Know why you believe what you believe. Without understanding why you believe something, you will never be able to know if you are on the right path, or what to fix and change. This is extremely important, in every aspect of life from religion to ethics to politics to school (don't just blindly believe your instructors) to training to relationships. In the case of religion, rational faith not blind faith. In the case of ethics, integrity but not blindness/stubbornness. In the case of politics, consistency and reason not partisanship. For school and training, extend your knowledge, don't just be content with "knowing" factoids and routines. For relationships, well that varies depending on lots of things. You get the point.
9) Do not under any circumstances deviate from what you believe to be true, right and virtuous. You pay with a little slice of your soul.
10) Distance running is overrated for burning fat. It is also overrated for building endurance, unless you run competitively or for some sort of test. Shorter sprints, 400m runs, interval running, and strongman training can do wonders for endurance and fat loss. As can fast walking for 40min immediately after getting up and before breakfast (no superspeed panting and sweating walking. Just brisk walks). Also doesn't drain you for weight workouts later in the day.