I know that the first steps in the gym or working out at home even can be tough. I used to think if I worked out it was taking away from being with my family. But I know believe I'm better for it not just becuase I'll be around longer but becuase my mood is better also.
My mom hates working out until....she tried zumba. SHe loves it and is now a zumbafreak
. I enjoy strength training and my sister loves to run/walk. So its about finding what you like and what you'll stick to. I also have to add I get bored quick so I have set up different routines so I don't get bored.
If you join a gym most have trainers that can help yo with questions you have. That can be very expensive but most gyms offer 1 free trial with a trainer. I suggest you do that. Its safer and you will learn the best way to do things without hurting yourself.
I'm not sure why you don't eat dairy (I'm thinking allergy) but if its not an allergy milk is great for protein after a hard workout. I don't recomend dairy before a workout as it can give you a terrible stomachache. GOOD LUCK.