For example if you receive $1300 a month and you invest $200 each every week, making a total of $800 per month left with $500, that is a bad aggressive Investment and surely the person is over doing it. because your bitcoin Investment should be done in a manner that you will not over do it. It will definitely affect you or Put you in a tight corner.
If you Invest $800 on bitcoin how much will you use for feeding and running family expenses? Or how much will you set aside for emergency and reserved? Surely if you over invest in Bitcoin, the $500 available amount will not be enough for emergency and reserved. Definitely it will affect your bitcoin HODLing.
Though it depends on you and how you can be able to manage your family. If its you alone you can cope but if it's a large family I doubt if you can manage. The point of the matter is that don't invest aggressively if not you will sell your bitcoin down the road.
However You can invest aggressively when you have the funds to do that, the most important thing is that you don't over do it, if not it will affect you, and you will end up selling some part of your bitcoin to conver up some emergencies that will arise.
I have seen this post in SPECULATION,your ideal is similar to that of TROYTECH
https://bitcointalksearch.org/topic/m.64105497