The left-side bearing on most of the glyphs in your font are negative. That would be normal for a combining accent that is designed to sit on top of the preceding glyph, or for a swash or italic f that curls under the preceding character, but it’s not usual. Most regular fonts will have left and right side-bearigns that are approximately equal — maybe they will be bigger for a letter like lowercase i or ll than for a Capital A or W.
Compare your font with mine, opening each glyph in the glyph edit window, and look at the postion of the glyph relative to the y-axis.
See the FAQ Sticky Thread for an illustration of various typography terms.