Can I give you some home work? Your first step is the figure out which relays you would like to store your content. There are many options and the most important part is to know who the operator is and trust that person. Nos.lol and nostr.mom are run by nostr:nprofile1qqsflmrj64um42nh9tu7w8nr3dffy9tjrt8xururype9ajle7alctvgppemhxue69uhkummn9ekx7mp0qyg8wumn8ghj7mn0wd68ytnddakj7qg4waehxw309ahx7um5wghx77r5wghxgetk9uukdx2g. Nostr.band is run by nostr:nprofile1qqs99d9qw67th0wr5xh05de4s9k0wjvnkxudkgptq8yg83vtulad30gpz9mhxue69uhkummnw3ezuamfdejj7zx57ul. Nostr.wine by nostr:nprofile1qqsrmpp2lmx4u2fl9zmxy7fnwp9rlwxwz5a2j8tep2c376n494z2gtgpz9mhxue69uhkummnw3ezuamfdejj7qgcwaehxw309anxjmr5v4ezumn0wd68ytnhd9hx2tcprpmhxue69uhkxun9v968ytnwdaehgu3wwa5kuef09lplkt. Nostr.band by nostr:nprofile1qqsrx4k7vxeev3unrn5ty9qt9w4cxlsgzrqw752mh6fduqjgqs9chhgpzamhxue69uhhyetvv9ujuurjd9kkzmpwdejhgtcpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszyrhwden5te0dehhxarj9ekk7mf0mpwca6, etc. You can also put your own relay up with nostr1.com from nostr:nprofile1qqs8eseg5zxak2hal8umuaa7laxgxjyll9uhyxp86c522shn9gj8crspz9mhxue69uhkummnw3ezuamfdejj7qgjwaehxw309ahx7um5wgerztnrdakj7qgkwaehxw309a3x2an09ehx7um5wgcjucm0d5hsvlnggv. Lots of options but the more you know the better it gets.