Hmmmmm
My recommendation - as Gurney says - you
need to talk with your priest.
It's your first Fast - you can't throw yourself into it and say " I'm going to do it properly " The Church tells us what is the ideal that we should aim for - but then tells us that we are to do our best and if we are unable to reach the ideal so-be-it. I have a priest friend who has various medical problems - and there's no way he can get anywhere near the ideal - he knows it , I know it and when I'm with him I do as he does . For me the sin would be far greater if I said to him ' I can't eat that - it's the Fast ! ' If I'm away from home I eat what's put in front of me - if it makes me break the Fast --- so-be-it - there's still the other legs of the Fast !
Even the Church eases us into it every year - this week those of us who may [ note the word 'may'

] lose meat , from next Sunday we go into the strict fast period . Believe me you
do need help at the beginning.
I've been made to promise [ and I am checked up on

by more than one person too

] that I will have one portion of dairy a day - and I obey.
But the Church also holds us to this strict fast for
5 days/week and at weekends it is mitigated slightly - we may have wine and oil ! After all Sundays are the day of Resurrection and so we rejoice .
It's something that, in a way, you get used to and we do it joyfully because we know why we are fasting.
However as others have said - fasting is only one leg of our preparation - there are others too - prayer , almsgiving , reading, and these anyone can do.
@ Going Byzantine - email your priest - ask his advice and then follow it
Remember there's more than one Fast each year
