Tina, it is good to see you trying different things out.
Just remember to be flexible and adapt as needed.
It may pay not to be too severe on yourself when you start out.
After all those unhealthy eating habits have been with you for a while and common sense will tell you that you may need to tackle them one at a time.
You don't have to give up your morning coffee...so drink it guilt free! You have done the right thing...coffee is chiefly water anyway...the main problem is the sugar people put in it (and you ain't doing that) and the milk (just a dash - is okay). just remember - all things in moderation.
Whatever you decide to consume; just make sure you take ownership of it (responsibility).
If it is heavy on calories (like alcohol) then you are under a moral obligation to yourself to make it up in some way.
That may mean eating less of other foods or exercising that little bit extra to burn it off.
Keep finding your way through those lifestyle choices. Hold fast to the things that work for you and be prepared to alter or jettison the things that don't work.
Good to see the 1.4kg loss...may you have many more successful weeks!