How do I resolve a conflict in my favour?

Accept ours — but check what you are discarding first.

In the three-pane editor, ours is the left pane — the branch you are on — and each conflicted hunk can take it with one click. Use Ours in the toolbar does the whole file at once, replaces it, and stages the result; the same command is under the arrow beside Resolve…, in the file’s header, without opening the editor.

Before you do it wholesale, two things are worth a moment.

Run Resolve Simple Conflicts first. It settles the hunks that have only one possible answer, so what remains is the set of places where you and they genuinely disagree — which is usually far fewer than the marker count suggested.

Read the right-hand pane. “Ours” during a rebase is not what it is during a merge: a rebase replays your commits onto theirs, so the side labelled ours is the branch you are replaying onto. Taking ours reflexively during a rebase discards your own work, which is the opposite of what you meant.

The middle pane is editable. A hunk whose right answer is neither side is written there.