Yup, my energy levels and overall well being seem closely tied to fat intake too. For what it's worth, after diving in the coconut-oil-and-butter pool and doing backstroke for a few weeks, I found the initial "Must. Have. Fat!!!" situation calmed down. Just my poor malnourished body righting the balance, I guess!
In terms of weight gain, the far more important thing is how your body is feeling? Odds are all that lovely meat and good fats are finally giving it the nutrients it needs to build and maintain good muscle mass. If, on the other hand, you're feeling the waistband a little tighter, just have a look at your portion sizes and really make sure you're absolutely eating when hungry, not "because it's mealtime".
I've found there's a fair bit of tweaking needed in the first few weeks to figure out exactly what works for you. Mark's done some lovely articles lately on conducting your own experiments too, which are worth a search for!
Hope that helps? Big thing for me is viewing it as a long term process. I'll try something (one change at a time, or you won't know what's worked!) for a month, see how I look and feel by the end of it, then adjust accordingly.