The daughter of a county employee and a retired Naval officer, Quiñones inherited her height from her father who is 6'3" (1.91m).

Nonetheless, her height was key to Joseph Casillas Elementary Lady Comets basketball team winning the first ever championship in 2007.

Quiñones attended Otay Ranch High School in Chula Vista, California, where she was a four-year starter on the girls' varsity basketball team.

In December 2013, she was highlighted by The San Diego Union Tribune as 2012-2013 girls basketball players to watch.

[2] On January 25, she put up 25 points, 17 rebounds, and six blocks in a rivalry game against Olympian High School.

[8] She led the Lady Mustangs to the first road playoff victory against higher ranked Imperial High School.

[2] On December 30, she recorded 26 points, 14 rebounds, and two blocks in the game against Castle Park High School.

[2] On February 12, 2015, she tallied 11 points, 21 rebounds, and 11 blocks in the game against Bonita Vista High School.

[10] As a sophomore (2016-2017), she started 21 of 27 games played, was second on the team with 22 blocks, averaged 9.1 points per game, scored a career-high 23 points in Dartmouth's 4OT thriller vs. Columbia (1/27), grabbed a career-high 13 rebounds and five steals vs. Albany (12/29), scored 18 points and grabbed 11 rebounds and dished three assists vs. Harvard (1/21), shot 41.8 percent from the field and made 74 of 94 free throw attempts.

She helped set team records for most points scored in a quarter against Columbia (35 pts; 2/3) and for single-season three-point field goals made and attempted (187-473).

[12] On November 9, 2018, against Loyola University Maryland, Quiñones led on the offensive end with a double-double of ten points and 12 rebounds.

[16][17] Dartmouth beat Columbia 70-69 on the road with Quiñones hitting a pair of free throws with 4 seconds left to give the Big Green the win.

[18] On February 22, 2019, Dartmouth beat Yale at home in a buzzer-beating put-back from Paula Lenart, when Quiñones attempted a three-pointer with six seconds to go for the win (56-54).

Source[20] In 2017, Quiñones' parents reached out to Puerto Rico's National Team management to understand the process for consideration into the program.

[22] Several new players were invited to the tryouts as Puerto Rican Basketball Federation (FBPUR) President Yum Ramos expressed this was an opportunity for a generational turnover.

[30] Puerto Rico was part of Group B which included Paraguay, Canada, Cuba and Mexico.

[33] In July 2018, Quiñones made the roster for the 2018 Central American Games held in Barranquilla, Colombia.

[44] She was a big factor in the success of team Puerto Rico earning the bronze medal.

Puerto Rico was part of Group A which included Dominican Republic, Cuba, Canada and Mexico.

Quiñones was the top performer at FIBA's Women's Olympic pre-qualifying tournament 2019 in Edmonton, Canada in the game between Puerto Rico and the Dominican Republic[48] and FIBA's Olympic pre-qualifying tournament 2020 in Bourges, France in the game between Puerto Rico and France.