Hi @pennsif !
I've started on FreeTrade too, mostly looking at dividend paying stocks and trying to build up a retirement plan. If you need any help getting started or learn from my mistakes then give me a shout. Don't forget to fill in the tax form if you plan to buy any USA stocks (you'll get charged 30% tax on them otherwise - form takes it down to 15% and then that 15% can be used against your personal tax allowance if needed).
Also note you don't need the ISA unless you're earning more than £2k from dividends/capital gains per year (capital gains only gets applied when you sell a stock and you can DCA or Dollar Cost Average to bring that down).