Reading this thread regarding accents etc...
I am learning French here but not picking it up as quick as I would have liked, however the majority of my day is taken up by speaking English. At work and at home the main language is English, at work because it's the company language as it operates globally and at home so my son picks up English as a strong second language. I speak French with the in laws and friends, but it's more Franglish than French at this stage.
However when I am speaking English it is very much with a neutralised accent and at a much slower pace so those I am depending on understanding me have an easier time of doing so.