Should i take up a personal loan to invest more?

1. I have a year of annual income saved in my bank that is accruing interest.
2. I have a set amount of additional income + variables that will be coming in for at least another 12 months.
3. I draw a full time pay on top of no.2

What I intend to do is to get a loan of about 5-6% int p.a and return them in 12 mth, while I invest the full amt into a diversified investment (part stock part p2pL) which gives me 9-12% p.a. (with risk involve)
What would the pros and con be?
Thanks so much guys!