If there is abundant btc available with me then for some of the btc I will sell it and lead a luxury lifestyle and fulfill some of those dreams. Few of them will convert to some altcoins and invest in good and upcoming ICO . Few will hold it as btc price is increasing and hold it till the crash starts.
Rest will sell as and when required to meet daily expenses and pay the monthly bills .
I think what you should do is make a business first before stepping up your lifestyle. Like you said, you are going to be selling some of the coins to support your daily expense and pay monthly bills. That means, you're going to get money solely from your bitcoins. Eventually, the abundant amount of btc you have will deplete and it will deplete at the rate depending on the "luxurious" lifestyle that you have made. I think you should start by making a business first so you know that tomorrow, there's going to be food on your table without you having to sell your bitcoins. Remember that bitcoin is an investment but it's better to have a business that will support your lifestyle and leave only large expenses for your bitcoins.