Start of weightloss newbie!

Ok so I have always been at a weight I was happy with but after having my son two years ago it's just crept up and up and I'm fed up of feel fat! So today I decided that's it enough is enough!

I've never really been in to exercise or fitness so any tips would be greatly appreciated need to fit round a full time job and family. I love found a 30 min work out on YouTube I like and can increase in intensity as I get better.

Any tips from those further in their journey?