Posted: 18/10/2014 at 18:17
Hi and welcome Hellotreacle
Don't worry - it'll all come right. Can you take lots of photos of the garden and the individual areas and the problematic areas and post them on here - that will give us an idea of your options and the best order to tackle them in.
To post a photo on here you need to click on the green tree icon on the toolbar above where you type your post, and follow the instructions.
If it doesn't work give us a shout