I am a master's student in energy engineering and I want to publish my work as I am hoping to get into a Ph.D. after my studies. My supervisor has recommended a conference. On one hand, I trust their judgment and I am at the very start of my academic career. On the other hand, I am afraid my work will be "wasted" on a conference proceeding with low impact (0.5 IF), and then I will be unable to publish the final paper later in a more respected journal in the field. My work is not agenda-setting but I think it could be published.
Does anybody have any advice about this if I had to make a binary decision?
Is it possible to apply for a conference and then back down ( without triggering any simultaneous or duplicate publishing which I do not want intentionally or negligently)? Is a minor and major paper applicable?