Sorry if this is a basic question, I'm totally new to this.
Short answer: in tarot the Three of Swords is usually about heartbreak, grief, and painful truths. The classic Rider-Waite image is a heart pierced by three swords, so it speaks to emotional pain, betrayal, separation, or bad news. That said it’s not only doom - it can also mean clarity that comes from facing something hard, necessary endings, and the start of the healing process.
Reversed it often points to recovery, forgiveness, or delayed/healing pain, depending on the reading. Swords (and spades in playing cards) deal with thoughts, conflict, and tough realities, so the three of spades carries a similar, generally sorrowful vibe.
For a tattoo: three crossed swords on a card won't be exactly the pierced-heart image, but people familiar with the symbolism may still read it as loss or conflict. If that fits what you want, great. If you’re worried about the negative side, consider adding other elements to make it more about resilience, release, or whatever meaning you want to carry. If you want, share your sketch and people can weigh in.