I can't speak for the OP, but in my research, the translation works out to be:

"Let me die with the foreigners"

I usually see "foreigners" replaced with "Philistines" (as noted above). It's Samson's line just before he braces against the pillars and brings the building down on himself and the thousands of Philistines inside, so I understand why it is usually translated that way.

Also, ψυχή here renders Hebrew nephesh, which is closer to "life" or "self", but when I think about the attributed statement it just reads better with the personal attachment (vs. "Let my self|life|soul die with..."). Which is the fun of translation, as each translator seeks to reveal a meaningful rendition which will resonate with their audience.