You should always watch up on the date before making any response on any thread because you are just simply making some necroposting or grave digging.

Back on topic about failures then this is mostly be experienced initially and it would depend into a certain person on how he do deal up with it and success will vary on how people handles it.

If it turns out that you do fail no matter how hard you do tried then its not bad to stop and find for something which does work for you.