diff --git a/bot.py b/bot.py
index 5880151..654cff4 100644
--- a/bot.py
+++ b/bot.py
@@ -2,10 +2,33 @@
 
 import discord
 from discord.ext import commands
-import os
+import os, sqlite3
 
-client = commands.Bot(command_prefix = "$")
+def get_prefix(client, message):
+    conn = sqlite3.connect('db.sqlite3')
+    curr = conn.cursor()
+    curr.execute(f'SELECT * FROM guilds WHERE guild_id="{message.guild.id}"')
+    query = curr.fetchone()
 
+    if query == None:
+        curr.execute(f"INSERT INTO guilds VALUES ('{message.guild.id}','$')")
+        conn.commit()
+        return "$"
+    else:
+        return query[1]
+
+client = commands.Bot(command_prefix = get_prefix)
+
+@client.event
+async def on_guild_join(guild):
+    print(dir(guild))
+    print(guild.id)
+
+    conn = sqlite3.connect('db.sqlite3')
+    curr = conn.cursor()
+    curr.execute(f"INSERT INTO guilds VALUES ('{guild.id}','$')")
+    conn.commit()
+    conn.close()
 
 @client.command()
 @commands.is_owner()
diff --git a/cogs/basic.py b/cogs/basic.py
index bc29e91..f9645f1 100644
--- a/cogs/basic.py
+++ b/cogs/basic.py
@@ -1,5 +1,6 @@
 import discord
 from discord.ext import commands
+import sqlite3
 
 class Basic(commands.Cog):
 
@@ -10,5 +11,15 @@ class Basic(commands.Cog):
     async def ping(self, ctx):
         await ctx.send("pong!")
 
+    @commands.command()
+    @commands.guild_only()
+    @commands.has_permissions(manage_messages=True)
+    async def changeprefix(self, ctx, *, prefix):
+        conn = sqlite3.connect('./db.sqlite3')
+        curr = conn.cursor()
+        curr.execute(f'UPDATE guilds SET prefix = "{prefix}" WHERE guild_id = "{ctx.guild.id}"')
+        conn.commit()
+        await ctx.send(f"Prefix changed to `{prefix}`")
+
 def setup(client):
     client.add_cog(Basic(client))
diff --git a/cogs/lydia.py b/cogs/lydia.py
index b5a5e07..6eeaa93 100644
--- a/cogs/lydia.py
+++ b/cogs/lydia.py
@@ -9,10 +9,10 @@ class Lydia(commands.Cog):
     def __init__(self,client):
         self.lydia = LydiaAI("69e6f26aba27d05e14c6a48e38008bc0794e24c1d25591db00575e9ce93c577ca934724981a540c319c7da3209ca4c0f910098c14ad6b5e27902c346c9f5cf7f")
         self.client = client
-        self.conn = sqlite3.connect('./lydia_sessions.sqlite3')
+        self.conn = sqlite3.connect('./db.sqlite3')
         self.cur = self.conn.cursor()
 
-    @commands.command(aliases=["lydia"])
+    @commands.command(aliases=["lydia"], brief="Have a chat with Lydia", usage="<chat>")
     async def ai(self, ctx, *, quest):
         self.cur.execute(f'SELECT * FROM sessions WHERE user_id="{ctx.author.id}"')
         query = self.cur.fetchone()
@@ -31,19 +31,19 @@ class Lydia(commands.Cog):
                 self.cur.execute(f"INSERT INTO sessions VALUES ('{ctx.author.id}','{session.id}','{session.expires}')")
                 self.conn.commit()
 
-
-                reply = session.think_thought(quest)
-                await ctx.send(reply)
+                await ctx.send(session.think_thought(quest))
                 #or alternatively
-                #await ctx.send(session.think_thought(quest))
+                #reply = session.think_thought(quest)
+                #await ctx.send(reply)
+
             else:
-                reply = self.lydia.think_thought(query[1], quest)
-                await ctx.send(reply)
+                await ctx.send(self.lydia.think_thought(query[1], quest))
                 #or alternatively
-                #await ctx.send(session.think_thought(quest))
+                #reply = self.lydia.think_thought(query[1], quest)
+                #await ctx.send(reply)
 
-        #remember to comment this out if you use the alternatives above
-        print(f"[<]{ctx.message.author}: {quest}\n[>]{reply}")
+        #uncomment this if you use the alternatives
+        #print(f"[<]{ctx.message.author}: {quest}\n[>]{reply}")
 
 
 def setup(client):
diff --git a/db.sqlite3 b/db.sqlite3
new file mode 100644
index 0000000..90fcf97
Binary files /dev/null and b/db.sqlite3 differ