Verbal abuse is not good in a relationship (from either party) but it also sounds like you have turned physical a couple of times already (which I believe from your post your gf has not).

You are aware that what you did not react in an appropriate manner and you accept that you have anger management issues - I applaud you for that. Will it escalate to harming her physically? Not everyone with an anger management issue will escalate to physically harming others, but those who physically harm others usually do have anger management issues - so it's not a foregone conclusion but it's something to be aware of.

People with anger management issues, both male and female can and do change their behaviour patterns. How they do this is specific to the individual, for some people self-help (reading up online and practicing self calming strategies) will be enough, others will require therapy of differing levels. A lot will depend on what is behind your tendency to lose your temper, and it's quite likely that there is something (family background possibly) which is behind this. One thing is for sure, throwing drinks or ripping up possessions is not healthy behaviour in either sex.