There will be days you love your art.
There will be days you hate your art.
Whatever your art or pursuit happens to be, love and hate is part of it. Part of the same coin. We've been disillusioned, that the process of creating is all love. Truthfully, there is a large amount of hate too. Even if you love what you do, their are aspects you hate. You might hate the cold calls you have to make or all the damn paperwork.
As a writer, I hate when my reading and thinking time is minimized or interrupted. This in turns makes me believe my writing sucks. Then I remember, sucking or feeling as If i suck, is just hate, which means is just part of the process of stringing together sentences.
You might hate leg day, as you create the body and health you want. You might hate staring at the blank page or canvas, but creating is putting something on it. You might love the status of being self-employed, but getting paying customers is hard.
There's a rule I learned long ago - never throw away a piece of writing or an idea. Sit on it. Put it away, as you don't know what it will turn to later. Margaret Atwood, would sit on manuscripts for an entire year, then grab it from her desk to take it further. Hate it, that's good. Don't disgard it. Time will move and in that time you might become a different person. What was once hated, becomes loved. Give it time. As is the case with wine, finer with time.