Do the feelings of loneliness go away?

Ive been in foster care for 3 years I had just turned 15! Happy birthday me ig. Ive been in 8 different homes (one of them being a group home where i was miserable) I feel like all my years of being a teenager have been wasted on bouncing home to home. Even before i was in foster care it felt like nobody wanted me and I will say I did act out in homes (even though they didn't treat me great but i wont excuse my actions with that) I know i sound self pitying in this I try to be positive now in the home I'm in because I am happy here but everytime me and the foster mom fight it turns into her either threatening to send me away or just bringing up me being in foster care like I'm supposed to owe her my life for something I never wanted and that it isnt already painful enough. Do these feelings of being unwanted ever go away?