How do I overcome my communication challenges to connect with the girl I love?

Hello Ma’am/Sir. I, Shivam Sharma. I want a suggestion for the problem I am facing right now. Before that I am going to share my story with you. It is about 2018 when I joined a gym near-by my house. I got a crush on a girl. She came with her sister and brother. I used to watch her in gym. Later I found that I love her. I have had her in my dreams. After some time I think she knows that I watched her in gym and got a crush on her. Then she, her sister started watching me every day and sometimes they smile sometimes they used to make a strange face like angry or something but I didn't understand at all (mixed reactions). All this went for a long time till 2020 before COVID-19. I know her Instagram and Facebook handle but I didn’t her send her a request becoz of reputation. Even I can't able to talk to her in gym becoz of reputation. After that I didn't get the time to join the gym till now. Now the situation is I joined the gym but still I got mixed reaction sometimes smile or strange or no reaction. I don't able to understand what is going on in her head. I really want something to happen but in a positive way. I really like this girl I want to spend my whole life with her. I want to marry. I want this to happen in 3 months becoz after that I will move to some other state for my further studies. I don't have enough time. Ma’am, please help me how can I approach her. How can I make her feel positive or to like me and relationship all. I can't able to understand what I am going to do.  Shivam

Hello sir i am 33 yeas old and i found a girl but i don't know how to talk to hwr

Meri ek friend hai bachpan se mere Pados me hi rahati hai but hum dono me jyada baat nahi hoti thi kuch saalo se but abhi kuch time se phir se baat hone lagi hai mere mann me uske liye feelings hai ,main kaise usse batau ki main ussey pasand karta hu main kaise usse apni GF banau..? Waise vo mujse age me 2 saal badi hai, please guide me