I would like to be able to produce a good income as I am retired, and yes I know I can just purchase one of those wedges and start collecting from a pool, but I primarily wish to increase my holdings of Ether and using your exchange I can trade pairs
With crypto in general, you can earn a nice amount of money, but could also lose it in a second. You can check with the people who bought BTC at $20K+.
What goes for trading on stock exchanges goes for crypto as well, do not invest money you can’t afford to lose.
In short, staking as well as adding liquidity to (new) pDEX trading pools is a passive way of earning, a bit like earning interest on a savings account. These can be good earnings.
If you want a more active way of earning, earn more (read risk more) by trading, there is only one rule to follow: buy low, sell high. What is high, what is low? Exactly, no one knows for sure. You will have to take a look at the charts to decide what is (a recent) high and low and use that.
As an example (not financial advice), most crypto has lost some of their value after the virus hit the globe, this could be a good moment to buy crypto, unless you expect things to get worse before they get better, than you wait for the next wave and try to buy some crypto when rates are even lower.
On exchanges that have an orderbook you could already put an order for a low rate and just wait and see if it gets that low. On pDEX there is no orderbook, all trades are instant. To make a good trade you will have to keep an eye on the rates more or less constantly.
In all honesty it looks like you are more in need of a “How do I trade” course in general than a pDEX tutorial on things.