I am going through arts and crafts to finish off. Found the above in the cupboard. The original picture chart is complicated and it will not work out well as a first time project. Any tips ?Does the wool become frayed once cushion is used? Does it become a mess? Do I have to use wool from the kit? Or will any comparable wool do? Planning on doing varied sized stripes. Enjoying it . Anyone done rag rugs .What is your experience of these ?Thankyou.