Your account got banned because you sent the same message to around 60 people. The comment tool should be left to the advanced users unless you make sure to do you research first.
Take A Look At @Johnny 's Guide On Spinning Test (Syntax)
In order to comment 50-100 a day, you will need to use the spin syntax. This will make every one of your posts unique.
For example you could say "Wow thats an amazing picture", and using the spin syntax it will change it to "Damn thats an awesome pic" "Super! Thats a great picture" etc. The more variables you add, the safer it will be.
I would recommend warming up your comments. If your account has not been commenting, then start with 5 comments/day and increase it by 1 comment/day until you reach 20 comments/day. Once you are commenting 20/day you can start increasing your comments by 5/day. I recommend commenting no more than 100/day ever.
Remember this is just my opinion and suggestion. Others may have success with higher amounts, but my method would be one of the safer options if you want to be on the safe side.
DONT GIVE UP!
Just remember to always take thing slow. Its better to take your time, and not have your accounts banned vs being impatient and banning all your accounts.
AS for the spin syntax I am not well educated on this, so I will let someone else chime in. I personally do not comment at all since I find it to risky.