Help with my 5 year old!!

Hello mommys and daddys!My son just turned 5 and, I am not shitting you, the minute he turned 5 he turned into a 15 year old. He's mouthy, impatient, rude, argumentative and so on. It's almost like he's a whole new child. He has always been a very reasonable child; as an only child he gets a lot of attention as in we take time to explain things to him and try to talk things through rather than yell and punish. This is why this has been so difficult. I know a lot of it has to do with the fact that he's on summer vacation and basically has no routine (I tried but he's an outdoor kid and would prefer being outside to doing anything else, keeping him indoors is a feat in and of itself, never mind trying to get him to actually do indoor activities), and he's probably sick of seeing my face since I've been home with him all summer. I have been stressed about work and such and so we have spent a lot of time butting heads. I will be the first to admit that I have not been the most patient and a lot of his behavior is a reflection of my own.Anyhow, that being said, I am attempting to come up with things to attempt to make our lives a little easier. I have done a lot of research on his behavior "issues" and how to "fix" them, but some of the research has left me with even more questions. I am hoping some mommys and daddys out there may be able to help.Two of our biggest issues are: arguing incessantly about EVERYTHING, and whining. I don't want to nix the arguing all together because I want him to be assertive and stubborn in other aspects of his life, especially as he gets into adulthood (I was like that but my parents suppressed me to the point where I question any assertiveness before I do it). I just want him to understand that there is a time and a place, that there is a line, and that if he wants to debate or negotiate there is a way to do it where we will be more inclined to listen (using a nice tone, being respectful, and so on.) Does anyone have any advice on how to acheive this? I read that when it comes to safety, routine, responsibilities, mom or dad should allow one rebuttle and then simply state "this is the way it is" and that will be that. However, if it is other things like when to clean his room or how to organize something, mom and dad should take the time to listen to his requests and consider them before saying yes or no (I struggle with this the most because most of the time I am attempting to juggle 8 things at the same time and sometimes forget to take a minute and listen to him).The other issue is the whining. I drive me BONKERS. I know he does it because I have allowed it and he tends to end up getting his way. Well, no more. I can't take it anymore and it is the thing that is driving the biggest wedge between us. What I have read is to consistently say, "I cannot understand you when you use that voice, when you're ready to talk to me with a nice tone, I will listen," and then ignore him until he comes to me with a nice tone. The problem with this is, once he is whining it's because he is about 2 breaths away from a full on meltdown. Sometimes this works, but 8 times out of 10, my ignoring him leads to a temper tantrum and then the yelling starts (me). How do I handle this? When I know he's about to tantrum but his whining is hitting a nerve with me, how to I get him to stop whining without it turning into a spectacle?And I have two more questions:I am making him a chore chart and wondering what is the best thing to do for a 5-year-old (daily chores, weekly chores...).And also, I am creating a routine for him and would like him to be able to access what is coming next by knowing what time the next "activity" is and comparing it to a clock (he can't yet tell time but he knows his numbers). Has anyone does this before, and if so, what did you do?Thanks everyone for your time in answering all of these questions! I am completely at a loss right now and I need some support :) via /r/Parenting http://ift.tt/2cthRzn