Is it really worth it?

Upon writing this I'm slightly annoyed and frustrated, so I may regret some of the things that I write, but it's brought out a question in me that I feel is important:
Is it really worth it?
What I'm referring to here is, well, doing anything. Recently I've done exams and revision for my final GCSEs and the exams alone, for me, add up to around 20 hours of solid work so I dread to think what the figure is when you factor revision into it. It's fair to say, I reckon, that I've been doing a lot of work and, honestly, it's not easy. Fortunately for me I'm now at a point where I've got a week between now and one exam, so I'm taking this opportunity to relax for a bit while leisurely revising as opposed to tearing my hair out revising for 5 exams in just as many days. That's not to say that I've done nothing apart from revise and work.
Around the house I do the odd jobs that need doing, I wash up, I clean the bird, put out laundry, iron and try to tidy up in general. Obviously I don't do this every single day (well, the washing up I do most days) but I try to do at least one thing each day just because I feel I should. Admittedly I have my faults with housework, I may not do enough or I may not get around to everything as soon as my Mum wants it done, but I do it or I least make the plans to do it. That's a lot more than some teenagers I know do (none of my close friends, I hasten to add) and if I have plans to do it, but then someone does it before me, I personally don't regard that as a fault of mine. I could have done it the second I was told to and, when I can, I do, but the point of me planning to do something is because I can't do it there and then. It's constantly debatable whether I'm the wrong party or not in a situation like this, but that's digressing from my ensuing point.
The result of me not doing one thing that's asked of me as soon as it's asked of me, is that my parents get frustrated, angry and generally act unpleasant towards me for the day. I find that quite childish because I see it in this way, as biased as it may be: They've asked me to do a job for them, I've not got the time so I plan to do it later, they go ahead and do it themselves and then complain that I didn't do it. Surely if they were that bothered about having me do it, they'd let me do it as opposed to taking charge and doing it themselves before I've got the chance to. It's their reaction towards me afterwards that provokes the question:
Is it really worth it?
Is it really worth doing a job a day if, the one time I don't do a job, they turn on me? It doesn't seem that way.
Is it really worth doing all the work I do at school if at home it doesn't matter and no-one acknowledges it? It doesn't feel that way.
Is it really worth dealing with their reaction when I firmly believe I've done nothing wrong? No, it's not, which is why instead of arguing about it with them I'm pondering the wider implications of this question and letting them simmer down.
In previous posts I spoke about going with the flow and being who you truly want to be, so applying these messages to this question I think I can say this:
Is it really worth it? If it matters to you, yes. If you feel strongly about doing it and you want to do it, then yes. The work I do at school matters to me because I want to do well in life, so it's worth it. The jobs I do at home make me feel like I contribute and they do make an un-noticed difference, so it's worth it. It may seem self centered and/or self obsessed to have this opinion, but if you don't consider yourself and all you find is negativity to your answer...then sometimes you have to receed into yourself for comfort and reasoning to what you do.
Never be afraid to do that, it can get you through the hardest of times and make you realise that yes, it really is worth it.

- Aiden