I Found The New 5 Pounds Aa 01 177115 What Should I Do?

I would stick it away and keep it for 20 years... but then that's because I collect banknotes and its usually good to get them for face value as they are released.

I don't really care about the serial numbers on my notes but the first run of the first issue (as denoted by AA) is always more desirable than some random serial from later on... so while your note isn't going to be the crown jewels it will become more valuable than other prefixes in time - assuming that it is in good condition.

Thank you very much for your answer, sorry I could't answer very fast. Anyway I had to be more clear maybe, so according on what it's happening on ebay should I sell it on ebay now or wait for improve the value of the banknote?(banknote is perfect condition https://drive.google.com/file/d/0B_...sp=drivesdk)

I would also try and sell it now before it turns into the 20p no date, they were selling for silly money initially and are now worth around £40 in UNC