Use what works best mate. I’m all for new things. YNAB is probably the one thing in life I will never replace… Maybe I’m getting old, I don’t know 
I don’t understand how people can function without it though, I genuinely don’t. If I have £1300 in my account, before YNAB, I had £1300 to spend. When realistically I only have £50. Litteraly nothing else can tell me that. Apart from Microsoft Money which no longer exists… And excel I guess