Arbusers

Hello all, I'm new in the Abitrage world and I have some questions:

1 - My final goal is around 300 euros per month, can I make that amount regularly with a bankroll of 3000 euros?

2 - Can I survive just with the unlimited bookmakers and make around 10% of profit? I really don't want to have dozens of accounts that will be banned in a future

Thank you and sorry for my bad English skills. 

1. Yes. A decent target would be a 12-16 ROI per month. When you start, bonuses will help you build your bankroll also, so a first month would be something around 25-40%.
2. Yes, if you pass to an other level of experience.

Thank you Arbusers, this world of arbitrage is very interesting and I'll study to master it.