The only online cooking lessons that I know
and trust is the
eGullet Culinary Institute. But it's been a long time since I looked much at what they have there.
They have a very broad range of skills and tend towards special topics. Some might be too advanced for someone starting out, but there are several "101" courses as well.
If you want a couple of book suggestions, have a look at
The New Cook by Mary Berry and Marlena Spieler (Note: I'm guessing you're in the UK?). It's just great for learning what things should look like and how you do things. Another good one is
No More Takeout by Stephen Hartigan (who is Irish) and Jerry Boak (an American). That one is an American book, but I think you would understand what they're about.
Welcome to cooking!!