hi. I am new to this community but i  think this is the best place to get an answer to my question. i am an old lady and i bought  some btc in 2016. i  have them on mycelium wallet. Since then a lot has been changed.
Now my question is is mycelium wallet still good. I updated few times cant even remember when. If mycelium wallet not good what should I do? do i lose my btc? ect. thanks