diff --git a/bot.go b/bot.go
index 58c386b..f105fcf 100644
--- a/bot.go
+++ b/bot.go
@@ -30,8 +30,8 @@ type Bot struct {
 	logger        *slog.Logger
 	requestLogger *slog.Logger
 
-	plugins     []*Plugin
-	middlewares []*Middleware
+	plugins     []Plugin
+	middlewares []Middleware
 	prefixes    []string
 	runners     []Runner
 
@@ -75,7 +75,7 @@ func LoadPrefixesFromEnv() []string {
 func NewBot(settings *BotSettings) *Bot {
 	updateQueue := CreateQueue[*Update](256)
 	bot := &Bot{
-		updateOffset: 0, plugins: make([]*Plugin, 0), debug: settings.Debug, errorTemplate: "%s",
+		updateOffset: 0, plugins: make([]Plugin, 0), debug: settings.Debug, errorTemplate: "%s",
 		prefixes: settings.Prefixes, updateTypes: make([]string, 0), runners: make([]Runner, 0),
 		updateQueue: updateQueue,
 		token:       settings.Token,
@@ -171,20 +171,20 @@ func (b *Bot) Debug(debug bool) *Bot {
 	b.debug = debug
 	return b
 }
-func (b *Bot) AddPlugins(plugin ...*Plugin) *Bot {
+func (b *Bot) AddPlugins(plugin ...Plugin) *Bot {
 	b.plugins = append(b.plugins, plugin...)
 	for _, p := range plugin {
 		b.logger.Debugln(fmt.Sprintf("plugins with name \"%s\" registered", p.Name))
 	}
 	return b
 }
-func (b *Bot) AddMiddleware(middleware ...*Middleware) *Bot {
+func (b *Bot) AddMiddleware(middleware ...Middleware) *Bot {
 	b.middlewares = append(b.middlewares, middleware...)
 	for _, m := range middleware {
 		b.logger.Debugln(fmt.Sprintf("middleware with name \"%s\" registered", m.Name))
 	}
 
-	sort.Slice(&b.middlewares, func(i, j int) bool {
+	sort.Slice(b.middlewares, func(i, j int) bool {
 		first := b.middlewares[i]
 		second := b.middlewares[j]
 		if first.Order == second.Order {
diff --git a/methods.go b/methods.go
index d2f02fe..687b790 100644
--- a/methods.go
+++ b/methods.go
@@ -130,7 +130,11 @@ type DeleteMessageP struct {
 	MessageID int `json:"message_id"`
 }
 
-func (b *Bot) DeleteMessage(params *DeleteMessageP) (*Message, error) {
-	req := NewRequest[Message]("deleteMessage", params)
-	return req.Do(b)
+func (b *Bot) DeleteMessage(params *DeleteMessageP) (bool, error) {
+	req := NewRequest[bool]("deleteMessage", params)
+	ok, err := req.Do(b)
+	if err != nil {
+		return false, err
+	}
+	return *ok, err
 }
diff --git a/plugins.go b/plugins.go
index cfda2b7..414c098 100644
--- a/plugins.go
+++ b/plugins.go
@@ -45,17 +45,16 @@ func (p *PluginBuilder) UpdateListener(listener CommandExecutor) *PluginBuilder
 	return p
 }
 
-func (p *PluginBuilder) Build() *Plugin {
+func (p *PluginBuilder) Build() Plugin {
 	if len(p.commands) == 0 && len(p.payloads) == 0 {
 		log.Println("no command or payloads")
 	}
-	plugin := &Plugin{
+	return Plugin{
 		Name:           p.name,
 		Commands:       p.commands,
 		Payloads:       p.payloads,
 		UpdateListener: p.updateListener,
 	}
-	return plugin
 }
 
 func (p *Plugin) Execute(cmd string, ctx *MsgContext, dbContext *DatabaseContext) {