Yes, within a short period of time it is impossible to make a profit on the investment and every time we cannot make the same amount because once the development team is doing good then the community will start buying a huge amount of coins for staking.
It is a very complicated situation. When price of VEIL is low, more staking reward per day due to low difficulty. When price of VEIL moves higher, lower staking reward per day with the same amount of coins used for staking. Generally, it is always better to invest when coin has low price, and stake when difficulty is low, especially if you see good potential and believe in future of the coin.