Welcome, complete the course and have a look at these pages too to add more knowledge:
With regards to starting capital. As you are a beginner you can start with whatever you want. But you should treat it as if it’s a larger amount. Stick to your plan and take only 1-2% risk per trade. The aim is to consistently build it so you are confident you can trade. Then put in more and repeat. The reason we say start with more is to help you psychologically. If you start with 10k then 1-2% is 100-200, so even if you are making 1:1 you could be making £200 which is a good amount of money to make trading real for you. With £100 you’ll make £1-2 pounds, some people look at it like it means nothing and become impatient leading to diverging from their plan and blowing their accounts. Good luck.