Qadha and Kaffara

Niyyat for missed fasts

Q: I have to make up for a lot of fasts I missed, as well as for some that were most likely invalid (due to issues with ghusl). Is the following intention permissible - "I intend to fast today to make up for a fast that I missed or one that was invalid".

Breaking one's fast due to fear of not being able to manage the fast

Q: Concerning the fast for Mondays, I went to sleep the night before intending to wake up to fast, then I woke up before sunrise and made the intention that I was not going to fast, and upon shutting my eyes I had once again changed my mind to fast thinking it is before sunrise and that I can do Sehri, however, upon checking the time I realised it was past sunrise and I was confused as to whether it counted as a fast or not, and I regarded myself as a fasting person and when another family member asked me regarding eating I verbally said I was fasting. However, I had a slight fear of not being able to maintain the fast throughout the day and therefore ate something upon making a judgement by reading some previous questions asked on a fatwa website. 

Therefore, Firstly was I counted as a fasting person in the first place?

Secondly, will making up the fast be necessary for me?

Mistakenly swallowing something while fasting

Q:

1. During Ramadhaan, I was baking a cake and whilst mixing, the chocolate powder went everywhere and I could taste it in my throat. The chocolate powder must have gone down my throat because it got stuck at the back of my throat. When I swallowed, it went down. Did this break my fast, and is kaffarah necessary?

2. Does swallowing (loose) skin on the lips break the fast?