7000 dollars is the suitable fund to start and it would be better for you to invest some of your money on good project. As I can consider myself as an expert in field of Token Sales, so I can give you some advice to pay attention to Socratus. It is a insurance ecosystem which provide a digital platform with instant claim payment products for insurance companies. It is designed to help insurance companies to save their money and get their business on a new level. For instance, they can help the insuance company to lower expenses from 15% to 25% on claims handling and operational expenses.
Here is my plan for this, you can adjust the numbers according to your own budget.
$4500 goes for ethereum investment and you hold it.
$1000 goes for bitcoin investment and you hold bitcoin too.
$500 goes for risky tokens to make crazy profit.
Last $1000 goes for daily trade of suitable tokens.