a plea - because i have no idea what i'm doing

One thing I'm beginning to realise as part of this fitness journey is that I haven't really got a clue what I'm doing. I want to get fit, I'd like to get really toned, and I know I should eat better, but I have no idea if I'm going about any of that in the right way.  Ok, I know the eating better thing I'm definitely not going about in the right way, the Ben and Jerry's keeps calling my name, but you know what I mean...
I go to classes because there is a teacher at the front of the room shouting at me, telling me what to do, and pushing me to keep going.  Put me in a gym, and I have no idea how to use any equipment, how many reps I should be doing, how heavy I should be lifting, and how long I should be running.

I follow all sorts of different fitness accounts on Instagram, yogis, weight lifters, runners, you name it, I probably follow it. What I do notice though, is that the weight lifting gym bunnies are the ones I really aspire to, they always have the lean physique and defined muscles, they talk about leg days, arm days and back days, counting their macros and upping their protein.  All of which, means absolutely nothing to me, but I like what I see.

I don't really want to start counting macros, it seems like too much of a faff, and I know if I go to a gym and attempt to motivate myself through a workout, it's never gonna happen, we just have to see what I'm like when it comes to running to know that, but I would like some direction. Is 6 classes a week really working? Is a combination of circuits, yoga, running and combat having any effect? 
I've definitely put a bit of weight on in the last couple of months, and I know that's mainly due to my sweet tooth and booze filled weekends. 
And I can't see my abs anymore, not that there was much to see, but I was slowly but surely seeing some definition, and I'm genuinely sad about that.

So I guess what I need is some direction.  Are classes going to work for me, or should I get my ass down to the gym?! Do I get a PT and give up what I'm doing now? Or do I carry on as I am, but get my act together and tighten up my diet.
I'll never be one of those people who live, breathe and sleep healthy lifestyle/healthy living, while I like the idea of it I also enjoy chocolate, wine, and burgers far too much.  So what I need to find is a happy medium, but ideally one that's going to get me more ripped than I am now, because I really would, one day, to see those abs again.
So if there's any personal trainers in Carlisle reading this, or someone who'll just come and shout at me in the gym, but can also give me some guidance on what I'm eating, and make me run that 1k further each time, then get in touch, because I'd love to hear from you.