Basic accounting isn't difficult. Having been brought up in a large family, handling money was something I learnt to do at a young age. Making money, saving money and using your talents, network and resources was also demonstrated to us from the youngest of ages which even included 'fundraising' 'blues' parties (my mum got wholesale drinks on credit and resold them, made food and sold it, hired the DJ - yes we had a very large house).
Straight after qualifying as a nurse, I took a four month full-time business course followed by a book-keeping and accounting course. Like any profession, you have to 'practice' it to stay current with it. Had I known at the time that book-keeping and accounting paid equivalent to nursing (with better working hours and more likely to help you build your wealth) I would have pursued that as a career instead. Perhaps you may choose to study accounts and use it to progress your career.
But regarding book-keeping, I learnt the traditional pen (pencil) and paper methods of accounting that will never fail you or crash on you. You have to understand the fundementals of what you are doing, without becoming dependent on the computer turning out the figures for you.
The alternative is to use some of the popular computerised accounts packages like Sage, (who also offer online training courses) which can help you organise larger budgets or businesses.
I personally find pen and paper much easier to use, but if you have perhaps a growing business you may find learning Sage or a computerised accounting package an essential investment for the long term. But if you are struggling to manage your own finanaces, that is where you need to focus first.
I will be focusing on the basics of just managing your own money here.