Good on you, at least you're in some way focusing on your own future / growth, even if it's only in the back of your mind, it's better than not being there at all - that is a really strong-minded attitude whether you realise it or not. Fair play to you.
And really well done for seeing a solicitor - I know a girl who's been separated since January, her ex is the one who walked out but is also the one calling all the shots and no matter how many times we've advised her to talk to a solicitor, she still hasn't. I'm sure she has her reasons but I'm just saying it to reiterate to you that you really are being very strong and proactive, and it's great to hear that you're not going to just let his bad behaviour destroy your life.
I can well understand why you'd still think of him when you walk in the door at home, and of course that'll take ages to fade away, I'm sure he's the first thing you think of when you wake up in the morning but it will fade away in its own time, there's no point in trying to deny it all or force yourself to not think about him either, it's your own mind and your own time, so do whatever comes naturally and let yourself stew for an evening if that's what you feel you need to do, it really sounds like you're holding your own and I'm delighted to hear it.
I am quite the feminist and tbh I'm SOOO sick of hearing about mens' bad behaviour that I'm just really rooting for you! I know women can behave badly too, but I'm just hearing so much about men and their sh1te that I just can't cope!!
And lastly, you're more than welcome for the support; and please don't think that just cos some of us are married more recently that we don't also have crap in our relationships! I have been with my partner for 10 years and married for 2, so it's not as if we're all hearts and roses just because we made it official relatively recently. It's tough going at times and I think it's so important that we all listen to and support each other because I know from my own friendship groups, some girls don't feel comfortable talking to their friends about their marriage problems and at least here, you can vent a bit and still remain anonymous.
You're certainly welcome by me to post or message anytime you want to get things off your chest x