No worries fella, please bear in my mind I'm a newbie myself though.
I bought the XXL mixing kit from makemyvape here
https://makemyvape.co.uk/pages/mixing-kit you get 10 trial flavours to start you off. I would advise going for the VG nicotine when it asks what you'd like, it's easier to make adjustments to the mix than going for nic on PG (opinions may vary).
A set of scales
here (ebay)
And got me a nice companion app with a calculator thats really easy to use here (Android)
https://play.google.com/store/apps/details?id=com.stasbar.vape_tool&gl=GB
I bought the pro version as it allows to cloud store yor recipies.
Total outlay I think £116, i'll make that back quite quickly.
That's it, I've made 3 batches so far which I have to say I'm really pleased with. Should have done this years ago. honestly mate don't be worried just do it, it's all part of the fun
Hope this helps.