Woman taking liquid clenbuterol- no negative comments...dosage problems, previous users please give advice?

I recently researched clenbuterol and want to incorporate it into my workout. As advised, it best works ideally at .80-1.00 cc's/mls for women, but start off low and work your self up..... Well I started off at .50ccs and was USELESS for the entire day.... heartrate was emensely elevated and I had uncontrollable shakes. I could not function. Now what I need to know is if anyone has taken liquid clen before....how low a dose did you start off at...or is my stuff very potent. I simply cannot handle that dose at .5, I need to know if I will be ok to take a lower dosage without the same effect. I want to make it work.... advice please..... and Please.... I know the obvious... I regularly work out and have a healthy lifestyle....just need that boost and am looking for a way to make this work. so please.... no negative comments, they will not help. Thank you