Can anyone recommend good exercise habits for someone (me, obviously) who's just started going to the gym for the first time and is looking to build a bit of muscle and flatten my stomach out? I asked for a routine at the induction and they were pretty vague beyond telling me what machine does what. As you can tell, I'm pretty clueless when it comes to this stuff.
At the moment, I go gymwards 2-3 times per week (although this is only my second week) and I tend to do about 15 minutes on the cross-trainer at 16 resistance, 5000m on the rowing machine (max resistance), then have a quick snack to keep my energy up before moving onto weights, where I do alternating bicep curls for as long as I can in reps of 25-30 (10kg in right hand, 8kg in my weirdly weaker left) before finishing off with machines to work chest and shoulders, depending on the time and what's available. Generally takes me around 1h - 90m in total. I know I should do core strengthening exercises (again, recommendations welcome) as well, I've just been lazy so far in that respect.
Anyway, key aims for me are putting on a bit of extra body mass and increasing strength and stamina. I'm eating better (no more junk food) and starting to get used to pushing myself, but any advice on routines/nutrition, or anything really, would be appreciated. Cheers.